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UNT Theses and Dissertations
- The Effects of Extinction on Human Performance Following Exposure to Fixed Ratio Schedules of Reinforcement
- This experiment examined the effects of extinction on rate of responding and several topographical and temporal measures in adult humans. Three college students were trained to type the sequence 1•5•3 on a numeric keypad on a computer. The subjects were exposed to different fixed-ratio schedules of reinforcement (FR1, FR 5, and FR10 respectively) and extinction. Subjects displayed typical schedule performances during the maintenance phase of the experiment. During extinction the performances were disrupted, they showed a "break and run" pattern and a general decrease in responding. Also, new topographical and temporal patterns emerged. These data are consistent with those reported for non-human species and special human populations. digital.library.unt.edu/ark:/67531/metadc2547/
- An Analytical Study of the Variations on the Theme of Paganini's Twenty-fourth Caprice, Op. 1 by Busoni, Friedman, and Muczynski
- The purpose of this study is to analyze sets of variations on Paganini's theme by three twentieth-century composers: Ferruccio Busoni, Ignaz Friedman, and Robert Muczynski, in order to examine, identify, and trace different variation techniques and their applications. Chapter 1 presents the purpose and scope of this study. Chapter 2 provides background information on the musical form "theme and variations" and the theme of Paganini's Twenty-fourth Caprice, Op. 1. Chapter 2 also deals with the question of which elements have made this theme so popular. Chapters 3,4, and 5 examine each of the three sets of variations in detail using the following format: theme, structure of each variation, harmony and key, rhythm and meter, tempo and dynamics, motivic development, grouping of variations, and technical problems. Chapter 6 summarizes the findings from this study and attempts to compare those elements among the three variations. Special attention is given to the application of the motivic cells, which are drawn from the original Paganini theme, in the development of succeeding variations. This study shows how these motivic cells contribute to the construction of new motives and melodies in each variation. Additionally, this study attempts to examine each composer's efforts in expanding variation procedure to the areas of structures and tempo markings in succeeding variations. digital.library.unt.edu/ark:/67531/metadc2548/
- Infinite Planar Graphs
- How many equivalence classes of geodesic rays does a graph contain? How many bounded automorphisms does a planar graph have? Neimayer and Watkins studied these two questions and answered them for a certain class of graphs. Using the concept of excess of a vertex, the class of graphs that Neimayer and Watkins studied are extended to include graphs with positive excess at each vertex. The results of this paper show that there are an uncountable number of geodesic fibers for graphs in this extended class and that for any graph in this extended class the only bounded automorphism is the identity automorphism. digital.library.unt.edu/ark:/67531/metadc2545/
- Beyond the Human Voice: Francis Poulenc's Psychological Drama La Voix humaine (1958)
- Francis Poulenc's one-character opera La Voix humaine (1958), a setting of the homonymous play by Jean Cocteau, explores the psychological complexities of an unnamed woman as she experiences the end of a romantic relationship. During the forty-minute work, she sings in a declamatory manner into a telephone, which serves as a sign of the unrevealed man at the other end. Poulenc uses musical motives to underscore the woman's changing emotional states as she recalls her past relationship. The musical dramaturgy in this work resignifies Debussy's impressionist symbolism by collapsing devices used in Pelléas et Mélisande in a language that shifts between octatonicism, chromaticism, harmonic and melodic whole tone passages, and diatonicism. This late work recontextualizes elements in Poulenc's Dialogues des Carmélites (1953-56), and the end of the opera provides a theme for his Sonate pour Clarinet et Piano(1962), as Poulenc reflects on his youthful encounters with Cocteau, Erik Satie, and Les Six. digital.library.unt.edu/ark:/67531/metadc2543/
- Heart of the Fathers, for Wind Symphony
- Heart of the Fathers is a programmatic, seven movement work for wind symphony depicting my ancestors and their role as part of the history of The Church of Jesus Christ of Latter-day Saints. The movements represent their spiritual experiences, labors, times of joy, persecution, migration, and finally their arrival and success in their new homeland. The piece is organized in seven movements. Each movement represents a different portion of history leading to the western migration of my ancestors. The programmatic music contains a variety of symbols depicting the experiences of the pioneers. In the paper, each chapter addresses an individual movement. For each movement, the following information is provided: the historical events that inspired the piece, the musical symbols that characterize the program, and an analysis of the function of the music. digital.library.unt.edu/ark:/67531/metadc2546/
- Husband's and Daughter's Role Strain During Breast Cancer Hospice Patient Caregiving and Bereavement Adjustment
- Current literature regarding caregiver bereavement adjustment has advanced two competing models explaining adjustment in relation to caregiver interrole conflict: the Relief Model and Complicated Grief Model. This research has primarily focused on the experience of those providing care to dementia patients. This study tests these competing models of bereavement adjustment for husband and daughter caregivers of breast cancer hospice patients. For husbands, greater psychological strain and health strain were predictive of greater difficulty with bereavement adjustment, supporting the Complicated Grief Model of bereavement adjustment. For daughters, strain was not a significant predictor of bereavement adjustment, and thus did not support either bereavement adjustment model. While daughter caregivers experienced more role strain than husband caregivers during patient care, the degree of role strain was predictive of bereavement adjustment for husbands but not for daughters, suggesting that relationship type (husbands versus daughters) between caregiver and patient impacts which factors influence bereavement adjustment. digital.library.unt.edu/ark:/67531/metadc2542/
- The effect of three different levels of skill training in musical timbre discrimination on alphabet sound discrimination in pre-kindergarten and kindergarten children
- The purpose of this study was to investigate the effects of three different levels of skill training in musical timbre discrimination on alphabet sound discrimination in pre-kindergarten and kindergarten children. The findings of prior investigations indicated similarities between aural music and language perception. Psychoacoustic and neurological findings have reported the discrimination of alphabet quality and musical timbre to be similar perceptual functions and have provided, through imaging technology, physical evidence of music learning simultaneously stimulating non-musical areas of the brain. This investigator hypothesized that timbre discrimination, the process of differentiating the characteristic quality of one complex sound from another of identical pitch and loudness, may have been a common factor between music and alphabet sound discrimination. Existing studies had not explored this relationship or the effects of directly teaching for transfer on learning generalization between skills used for the discrimination of musical timbre and alphabet sounds. Variables identified as similar from the literature were the discrimination of same- different musical and alphabet sounds, visual recognition of musical and alphabet pictures as sound sources, and association of alphabet and musical sounds with matching symbols. A randomized pre-post test design with intermittent measures was used to implement the study. There were 5 instructional groups. Groups 1, 2,and 3 received one, two and three levels of skill instruction respectively. Groups 4 received three levels of skill training with instruction for transfer; Group 5 traditional timbre instruction. Students were measured at the 5th (Level 1), 10th (Level 2), 14th (Level 3), and 18th (delayed re-test), weeks of instruction. Results revealed timbre discrimination instruction had a significant impact on alphabet sound-symbol discrimination achievement in pre-kindergarten and kindergarten children. Different levels of timbre instruction had different degrees of effectiveness on alphabet sound discrimination. Students who received three levels of timbre discrimination instruction and were taught to transfer skill similarities from music timbre discrimination to alphabet sound discrimination, were significantly more proficient in alphabet sound symbol discrimination than those who had not received instruction Posttest comparisons indicated skill relationships were strengthened by instruction for transfer. Transfer strategies had a significant impact on the retention of newly learned skills over time. digital.library.unt.edu/ark:/67531/metadc2544/
- Linearity and monotonicity of a 10-bit, 125 MHz, segmented current steering digital to analog converter
- The purpose of this research is to determine the linearity and monotonicity of the THS5651IDW digital to analog converter (DAC), a prototype of the future Texas Instruments TLV5651, 10-bit, 125 MHz communication DAC. Testing was conducted at the Texas Instruments facility on Forest Lane, Dallas, Texas. Texas Instruments provided test equipment, software and laboratory space to obtain test data. Analysis of the data found the DAC to be monotonic since the magnitude of the differential nonlinearity (DNL) was less than ± 1 least significant bit (LSB) and the integral nonlinearity (INL) was less than ± 0.5 LSB. The study also showed that the DAC has primarily negative DNL although the DNL is well within the desired specification. digital.library.unt.edu/ark:/67531/metadc2541/
- Oxygen Uptake Kinetics in Severe Intensity Exercise
- The purpose of this study was to describe mathematically the oxygen uptake kinetics during cycle ergometry, and to examine the effect of intensity on the kinetic responses within the severe domain. Sixteen volunteers performed a series of exercise tests at a range of intensities selected to elicit fatigue in ~3 to 10 min. A simple mono-exponential model effectively described the response across all intensities. There was a positive correlation between the response time and the time to fatigue, demonstrating that the maximal oxygen uptake was achieved faster at higher intensities within the severe domain. Models incorporating two components effectively described the responses only in tests lasting 8 min or more. It was concluded that there is a second, slow component in the oxygen uptake response only at the lower intensities within the severe domain. digital.library.unt.edu/ark:/67531/metadc2539/
- Filial Therapy Training with Undergraduate Teacher Trainees; Child-Teacher Relationship Training
- This experimental research study investigated the effectiveness of the application of Child-Teacher Relationship training, adapted from child-centered play therapy procedures and skills training (filial therapy), with undergraduate teacher trainees. Specifically, this research determined if Child-Teacher Relationship training facilitated change in teacher trainees' interactions with children, parenting attitudes, and play therapy attitude knowledge and skills. The experimental group of teacher trainees (n=18) received 10 weekly ninety minute training sessions in child-centered play therapy skills and procedures and conducted 7 weekly special play times with children. The comparison group (n=20) received supplemental training in child guidance during the ten weeks that included parent training and alternatives to corporal punishment. Experimental and comparison group participants completed pre-test and post-test measures, consisting of the Adolescent and Adult Parenting Attitudes Inventory (AAPI-2), the Play Therapy Attitudes, Knowledge, and Skills Survey (PTAKSS), and a videotaped special play time with a child which was rated using the Measurement of Empathy in Adult and Child Interactions (MEACI). Analysis of covariance on adjusted post test means revealed that the teacher trainees in the experimental group demonstrated statistically significant ("<.05) increases in empathy towards children, allowing the child self direction, communication of acceptance, and involvement as measured by the MEACI. Significant ("<.05) increases were also reported on teacher trainees in the experimental group on play therapy attitudes, knowledge, and skills as measured by the PTAKSS. The experimental group demonstrated growth in level of empathy and adult-child role subscales on the AAPI, and positive trends (.07) were reported on the AAPI expectations of children subscale. digital.library.unt.edu/ark:/67531/metadc2538/
- Prediction of community college students' success in developmental math with traditional classroom, computer-based on-campus and computer-based at a distance instruction using locus of control, math anxiety and learning style
- The purpose of this study was to investigate the relationship between individual student differences and academic success in three pedagogical methods (traditional classroom, computer-aided instruction (CAI) in an on-campus setting, and CAI in a distance education setting) for developmental mathematics classes at the community college level. Locus of control, math anxiety and learning style were the individual differences examined. Final grade, final exam score and persistence were the indicators of success. The literature review focused on developmental mathematics, pedagogical techniques and variables contributing to academic performance. Two parallel research populations consisted of 135 Beginning Algebra students and 113 Intermediate Algebra students. The Rotter I-E Locus of Control Scale, the Abbreviated Mathematics Anxiety Rating Scale, the 4MAT Learning Type Measure, and an instrument to gather demographic data were used. It was the conclusion of this study that the instructional methods were not equal with respect to achievement. In Beginning Algebra, the CAI students received significantly higher final grades than did the traditionally taught students. In Intermediate Algebra traditional students scored significantly higher on the final exam than did the CBI students. There were more students persisting than expected in traditionally taught Beginning Algebra and no significant difference in attrition in Intermediate Algebra. There was no significant prediction of achievement in Beginning Algebra. For Intermediate Algebra math anxiety was a significant predictor for final exam percentage and locus of control was a significant predictor for final grade percentage. Only the instructional method contributed significantly to the prediction of attrition. While these findings are statistically significant, they account for only a small part of student success. However, the results had implications for the future. In particular, further study should be given to the question of whether CAI, and its associated expenses, is prudent for developmental mathematics instruction. digital.library.unt.edu/ark:/67531/metadc2540/
- Effects of a simulation game on trainees' knowledge and attitudes about age-related changes in learning and work behaviors of older workers
- This investigation was conducted in response to the need for effective diversity awareness programs to help employers create intergenerational-friendly work environments. An experimental pre- and post-test control group randomized block design was employed to answer two research questions about the effects of a simulation game on knowledge and attitudes about age-related changes in learning and work behaviors of older workers. Participants were assessed immediately prior to and following the treatment, followed by a third assessment 60 days later. Necessary measures were taken to control for threats to the study's internal validity. An applicant pool comprised of human resource management and development practitioners and senior undergraduate students enrolled in human resource management courses yielded a sample of 65 participants. Chapter one introduces the study. Chapter two provides a review and summary of relevant literature on ageism in the workplace, training older workers, and simulation games. Chapter three describes the procedures and methods used to answer the research questions. Chapter four presents the results of all analytic procedures related to the investigation. Chapter five provides the conclusions and recommendations based on the findings of this investigation. In this investigation, the treatment group did not score significantly higher on their knowledge of age-related changes in learning and work behaviors of older workers than the control group following treatment. The attitudinal change experienced by the treatment group did not differ significantly from the attitudinal change experienced by the control group. Recommendations for further research include the following: (a) the disordinal interactive effect of the control group's performance on the knowledge measure during the 60-day interval between post assessments warrants further investigation, (b) the statistically significant change in attitude that occurred within each group during the 60-day interval following treatment warrants further investigation, and (c) more reliable instruments need to be developed for measuring the effects of heightened awareness following diversity interventions. digital.library.unt.edu/ark:/67531/metadc2537/
- What insight do market participants gain from dividend increases?
- This study examines the reactions of market makers and investors to large dividend increases to identify the motives for dividend increases. Uniquely, this study simultaneously tests the signaling and agency abatement motivations as explanations of the impact of dividend increases on stock prices and bid-ask spreads. The agency abatement hypothesis argues that increased dividends constrict management's future behavior, abating the agency problem with shareholders. The signaling hypothesis asserts that dividend increases signal that managers expect higher or more stable cash flows in the future. Mean stock price responses to dividend increase announcements during 1995 are examined over both short ( _1, 0) and long ( _1, 504) windows. Changes in bid-ask spreads are examined over a short ( _1, 0) window and an intermediate (81 day) period. This study partitions dividend increases into a sample motivated by agency abatement and a sample motivated by cash flow signaling. Further, this study examines the agency abatement and cash flow signaling explanations of relative bid-ask spread responses to announcements of dividend increases. Estimated generalized least squares models of market reactions to sampled events support the agency abatement hypothesis over the cash flow signaling hypothesis as a motive for large dividend increases as measured by Tobin's Q and changes in the distribution of cash flows. digital.library.unt.edu/ark:/67531/metadc2536/
- An Examination Of The Variation In Information Systems Project Cost Estimates: The Case Of Year 2000 Compliance Projects
- The year 2000 (Y2K) problem presented a fortuitous opportunity to explore the relationship between estimated costs of software projects and five cost influence dimensions described by the Year 2000 Enterprise Cost Model (Kappelman, et al., 1998) -- organization, problem, solution, resources, and stage of completion. This research was a field study survey of (Y2K) project managers in industry, government, and education and part of a joint project that began in 1996 between the University of North Texas and the Y2K Working Group of the Society for Information Management (SIM). Evidence was found to support relationships between estimated costs and organization, problem, resources, and project stage but not for the solution dimension. Project stage appears to moderate the relationships for organization, particularly IS practices, and resources. A history of superior IS practices appears to mean lower estimated costs, especially for projects in larger IS organizations. Acquiring resources, especially external skills, appears to increase costs. Moreover, projects apparently have many individual differences, many related to size and to project stage, and their influences on costs appear to be at the sub-dimension or even the individual variable level. A Revised Year 2000 Enterprise Model is presented incorporating this granularity. Two primary conclusions can be drawn from this research: (1) large software projects are very complex and thus cost estimating is also; and (2) the devil of cost estimating is in the details of knowing which of the many possible variables are the important ones for each particular enterprise and project. This points to the importance of organizations keeping software project metrics and the historical calibration of cost-estimating practices. Project managers must understand the relevant details and their interaction and importance in order to successfully develop a cost estimate for a particular project, even when rational cost models are used. This research also indicates that software cost estimating has political as well as rational influences at play. digital.library.unt.edu/ark:/67531/metadc2535/
- Spatial and Temporal Influences of Water Quality on Zooplankton in Lake Texoma
- Seventy-one aquatic species including the copepodids and nauplii were identified from Lake Texoma from August 1996 to September 1997. Zooplankton community structure, abundance and spatial and temporal distributions were compared among five lake zones delineated a priori based on chloride concentration. The zones, in order of decreasing chloride concentration, are the Red River zone (RRZ), Red river Transition zone (RRTZ), Main Lake zone (MLZ), Washita River Transition zone (WRTZ) and Washita River zone (WRZ). Bray Curtis Similarity Index showed community structure was most similar in the two Red River arm zones, the two Washita River arm zones and the MLZ. Zooplankton abundance was greatest in the Red River arm (312 org/L), intermediate in the Washita River arm (217 org/L) and least in the Main Lake body (103 org/L). A significant increase in the abundance of a deformed rotifer, Keratella cochlearis, was observed mainly in the Red River arm during a second study from March 1999 to June 1999. Seasonal dynamics, rather than spatial dynamics, were more important in structuring the zooplankton community, especially in the two river arms. Spatial variance was solely attributed to station and zone effects independent of time for a few crustacean species and many of the water quality parameters supporting the presence of longitudinal gradients of differing water quality. Three independent models (Red River arm, Washita River arm, Main Lake body) rather than a single model for the entire reservoir, best describe patterns in the zooplankton community and its relationship to seasonal, physical and chemical factors. Statistical power, sample size and taxonomic resolution were examined. When monitoring seasonal and annuals trends in abundance, the greatest statistical power was achieved by analyzing count data at taxonomic levels above genus. Taxonomic sufficiency was assessed to determine if costs could be reduced for zooplankton identifications. For water quality monitoring purposes only, it is recommended that genus identifications are sufficient if supplemented with quarterly species identifications. digital.library.unt.edu/ark:/67531/metadc2532/
- Comparative Models of the Impact of Social Support on Psychological Distress in Cancer Patients
- This study tested the relationship between Social Support, Psychological Distress, and Illness Stress in individuals who report cancer as a health condition. This study was based on archival data obtained from the Wave 1 of the Health and Retirement Study (HRS). The HRS provides a nationally representative sample of individuals aged 51 to 61 in 1992 and their spouses. The study sample was limited to cancer patients with a spouse or partner (n = 503). A structural equation modeling analysis procedure was used to test the theoretical models. Measures of social support were limited to variables assessing the participant's satisfaction with social support. Evidence was found for the Stress Prevention and the Support Deterioration models. This is congruent with previous research using measures of social support perception. Both the Stress Prevention and the Support Deterioration models predict a negative relationship between Illness Stress and Social Support. In addition, a univariate analysis of variance was used to test the stress buffering model. Similarly to other studies measuring the individual's degree of integration, or its perception, in the social network, the present research supported the only the Main Effect model and not the Stress Buffering model. digital.library.unt.edu/ark:/67531/metadc2533/
- Images of Remembered Earth
- Images of Remembered Earth is a musical composition scored for full orchestra. The composition was inspired by Georgia O'Keeffe's painting, Light Coming on the Plains I (1917), which depicts a sunrise over a flat and empty landscape. In the painting, the expanse of the sun's rays is expressed through an even-blended transformation of color from goldish-blue at the light's source to progressively darker shades of blue near the edges of the canvas. The progression of color is interrupted by thin gold bands which sectionalize the sunrise into seven concentric arches. The construction of the musical composition derives musical materials directly from elements found within O'Keeffe's painting, specifically the shaping of structure, expansion, and color in arch patterns. Arch patterns, an integral element in O'Keeffe's painting, govern elements in the musical composition, including pitch selection, the overall tempo scheme, rhythmic activity, and formal shape. Pitch materials are expansive by design; this expansive quality is exhibited through the employment of wedge-shaped musical ideas and through the utilization of higher and lower registers. O'Keeffe's use of color in the painting influenced the orchestration of the music and is manifested in two ways: 1) gradual transformation of timbral colors and 2) the juxtaposition of contrasting instrumental groupings. digital.library.unt.edu/ark:/67531/metadc2534/
- Effectiveness of a Child-Centered Self-Reflective Play Therapy Supervision Model
- This study investigated the effectiveness of a child-centered self-reflective play therapy supervision model with master's level counselor education graduate students. Specifically, this research determined if the self-reflective play therapy supervision model facilitated significant change in the master's level play therapists': (a) child-centered attitude; (b) knowledge of child-centered play therapy; and (c) confidence in applying play therapy skills. This study also measured change in the skills of: (d) tracking behavior, (e) reflecting content, (f) reflecting feelings, (g) facilitating decision-making and self-responsibility, (h) facilitating esteem-building and encouragement, (i) encouraging the child to lead, (j) setting limits, (k) ability to be congruent, (l) quality of non-verbal responses and (m) quality of verbal responses. The experimental group students (N=15) utilized a 15 week self-reflective play therapy supervision model. This model consisted of a manual that reviewed the rationale and utilization of six therapeutic responses of child-centered play therapy, self-assessment forms that were completed after reviewing weekly play therapy session videos and weekly group supervision. The control group (N=15) received supervision during the 15 weeks but did not use the manual or the self-assessment forms. Prior to working with their first client and again at the end of the semester practicum, the play therapy supervisees completed the Play Therapy Attitude-Knowledge-Skills Survey. Each supervisee submitted a pre-tape and a post-tape of a play therapy session during their semester practicum. Four doctoral students rated play therapy session video tapes using the Play Therapy Skills Assessment form. The play therapy session video tapes were assessed by objective raters. An independent t-test utilizing the gain score as the dependent variable revealed that play therapy supervisees in the experimental group showed a statistically significant increase in their ability to implement the skill of tracking behavior, facilitating decision-making and self-responsibility and facilitating esteem-building and encouragement. In addition, the experimental group supervisees showed a significant increase in the quality of their verbal responses and a marginally significant increase in their ability to reflect content and reflect feelings. Limited statistical significance in the play therapy supervisee's improvement of skills possibly could be attributed to the small sample size and lack of random assignment of participants to the experimental and control group. The positive trends in the play therapy supervisees increased ability to implement play therapy skills warrants additional research of the self-reflective supervision model. digital.library.unt.edu/ark:/67531/metadc2531/
- Measuring attention: An evaluation of the Search and Cancellation of Ascending Numbers (SCAN) and the short form of the Test of Attentional and Interpersonal Style (TAIS)
- This study found a relationship between the Search and Cancellation of Ascending Numbers (SCAN), Digit Span, and Visual Search and Attention Test (VSAT). Data suggest the measures represent a common construct interpreted to be attention. An auditory distracter condition of the SCAN did not distract participants, while the measure exhibited ample alternate forms reliability. The study also found that the Test of Attentional and Interpersonal Style (TAIS) short form poorly predicted performance on the Digit Span, VSAT, and SCAN. Although the TAIS exhibited good internal consistency, the items likely measure the subjective perception of attention. Furthermore, discriminant and convergent validity of the TAIS were found to be poor. digital.library.unt.edu/ark:/67531/metadc2529/
- Redemption and the other: the supernatural narrator and the intertextual (sub)version of the Miltonic command
- In literary discourse from the Genesis creation myth through John Milton's Paradise Lost and beyond, Eve has been patriarchally considered to be the bringer of Sin and Death into the world. In Paradise Lost Eve is depicted as deceiving Adam into the Fall by way of the Serpent. Paradise Lost creates a Miltonic command that helps to further blame Woman for Sin and Death. Milton's poem is based on the Genesis creation myth written by Canaanite authors. In this myth the Canaanite authors wished to rid the world of Goddess worship and, by humanizing Eve, they successfully obliterate that form of worship. As a result of this obliteration of the Goddess, Eve, as a humanized form of the ancient Goddess Asherah, remains unredeemed for her sin and forever held to blame. Throughout what Michel Foucault calls the archive, or discourse in which power resides, Eve/Woman continues to be seen by patriarchal discourse as to blame for the Fall. There has never been a successful redemption for Eve in the archive. Although Samuel Richardson's Clarissa has been suggested as a successful redeemer of Eve, Clarissa's blatant will to death and, therefore, will to power precludes a successful redemption of Eve. The successful Redemption of Eve comes in Thomas Hardy's novel Tess of the D'Urbervilles. By way of Tess's Goddess stature and her self-sacrifice at the end of the novel she successfully effects a redemption of Eve/Woman. As Goddess, Tess enters a state of otherwise than being in the intertext and becomes the Supernatural narrator who narrates both her own story and the unsaid story of the Goddess in the mythic narrative. By way of this otherwise than being as the Supernatural narrator, Tess takes on Eve's blame and intertextually subverts the Miltonic command by narrating the Goddess's prehistorical purity. As a result, then, Eve is redeemed and the Goddess's unsaid story is reinstated in the mythic narrative. digital.library.unt.edu/ark:/67531/metadc2530/
- MEDLINE Metric: A method to assess medical students' MEDLINE search effectiveness
- Medical educators advocate the need for medical students to acquire information management skills, including the ability to search the MEDLINE database. There has been no published validated method available to use for assessing medical students' MEDLINE information retrieval skills. This research proposes and evaluates a method, designed as the MEDLINE Metric, for assessing medical students' search skills. MEDLINE Metric consists of: (a) the development, by experts, of realistic clinical scenarios that include highly constructed search questions designed to test defined search skills; (b) timed tasks (searches) completed by subjects; (c) the evaluation of search results; and (d) instructive feedback. A goal is to offer medical educators a valid, reliable, and feasible way to judge mastery of information searching skill by measuring results (search retrieval) rather than process (search behavior) or cognition (knowledge about searching). Following a documented procedure for test development, search specialists and medical content experts formulated six clinical search scenarios and questions. One hundred and forty-five subjects completed the six-item test under timed conditions. Subjects represented a wide range of MEDLINE search expertise. One hundred twenty complete cases were used, representing 53 second-year medical students (44%), 47 fourth-year medical students (39%), and 20 medical librarians (17%). Data related to educational level, search training, search experience, confidence in retrieval, difficulty of search, and score were analyzed. Evidence supporting the validity of the method includes the agreement by experts about the skills and knowledge necessary to successfully retrieve information relevant to a clinical question from the MEDLINE database. Also, the test discriminated among different performance levels. There were statistically significant, positive relationships between test score and level of education, self-reported previous MEDLINE training, and self-reported previous search experience. The findings from this study suggest that MEDLINE Metric is a valid method for constructing and administering a performance-based test to identify mastery in searching the MEDLINE database. The test's reliability needs to be established. digital.library.unt.edu/ark:/67531/metadc2526/
- Effects of daily oral injections of quercetin on implanted Colon-25 tumor growth in Balb-c mice
- The effects of three oral dosages (0.4 mg, 0.8 mg, and 1.6 mg) of quercetin on Colon-25 tumors implanted in Balb-c mice were studied. The data in this study show that: (1) certain dosages of quercetin in alcohol solutions, reduces the weight, and size of implanted Colon-25 tumors in Balb-c mice, (2) these same dosages of quercetin all produce a profound neutrophilia combined with a significant lymphopenia at day 20 post-implantation, and (3) there was relatively little evidence of histological changes in the quercetin-treated tumor section which would indicate that the action(s) of quercetin is primarily at the subcellular level probably within the nuclei of the tumor cells. digital.library.unt.edu/ark:/67531/metadc2525/
- An investigation of technical support issues influencing user satisfaction
- The widespread distribution of personal computers (PCs) throughout organizations has made a substantial impact on information systems. Additionally, the tremendous growth of the Internet has changed the way business is carried out. As the user population evolves into a much more technical and demanding group, their needs are also changing. With this change, Management Information Systems (MIS) departments must develop new ways of providing service and support to the user community. This study investigates the relationship between information systems support structures, support services, service quality and the characteristics of a diverse user population. This includes investigating technical support issues influencing user satisfaction. This study attempts to improve the understanding of the support function within MIS. The results of this study clarify the support needs of the users and identify user satisfaction factors, as well as factors relative to the quality of the support received. Six streams of prior research were reviewed when developing the research framework. These include: user support, end users and end-user computing, identifying and classifying user types, information centers, user satisfaction, service quality and other sources of computer support. A survey instrument was designed using the (UIS) user satisfaction instrument developed by Doll and Torkzadeh (1988) and the SERVQUAL instrument as modified by Kettinger and Lee (1994). The survey was distributed to 720 individuals. A total of 155 usable responses were analyzed providing mixed results. Of the ten hypotheses, only four were rejected. The finding of this study differ from those in earlier studies. The variables that were found to be significant to the users for service quality are the method of support that is provided to the user, i.e., help desk or local MIS support and the support technician's experience level. For user satisfaction the location of the service personnel made a difference to the end user. As with service quality, the support technician's experience level added to the users' satisfaction with MIS support. The results of this study are pertinent to managers of MIS departments as it clarifies the support needs of the users and identifies issues of user satisfaction and service quality. digital.library.unt.edu/ark:/67531/metadc2528/
- Decision making factors in child caregiver reporting of child abuse and neglect
- This study investigated decision making factors used by child caregivers to identify suspected child abuse and neglect and collected data on caregiver training in the recognition and reporting of suspected child abuse and neglect. Data was collected in July 1999 in fourteen north Texas childcare programs. One hundred twenty three teaching and administrative staff completed a survey based on Jacobson, A., Glass, J. and Ruggiere, P. (1998). Five teachers and five administrators chosen for convenience were read eleven vignettes describing possibly abusive situations to decide whether they were reportable or non-reportable, and to indicate factors used to make their decisions. Administrators (50%) and teachers (13.3%) reported being unfamiliar with child abuse and neglect definitions and reporting laws. Two thirds (66.7%) of the administrators and 39.8% of the teachers had received specific training in recognizing and reporting child abuse and neglect. Administrators were more likely than teachers to report suspected child abuse and neglect. Teachers often reported to program administrators rather than state designated authorities. All subjects relied on information about children, but administrators also used information about parents, with teachers more likely to make excuses for parental actions. With 110 reporting opportunities, training was cited as a factor only twice by administrators. No teachers made reports to anyone other than program administrators, a factor named deference in this study. Four of five administrators expected deference from teachers when reporting decisions were made. Present training in the recognition and reporting of suspected child abuse and neglect is inadequate. Caregivers need additional training in differences between accidental and intentional injuries, detection of child sexual abuse and emotional neglect, recognition and assessment of injuries among infants and toddlers, and mandated reporting procedures. Further research on optimal training for accurate reporting of suspected abuse and neglect is needed. A mandate to report to authorities outside the child care center should be clarified in state law. Licensing individuals as well as programs would strengthen reporting by caregivers. digital.library.unt.edu/ark:/67531/metadc2527/
- No Slip-Shod Muse: A Performance Analysis of Some of Susanna Centlivre's Plays
- In 1982, Richard C. Frushell urged the necessity for a critical study of Susanna Centlivre's plays. Since then, only a handful of books and articles briefly discuss herand many attempt wrongly to force her into various critical models. Drawing on performativity models, my reading of several Centlivre plays (Love's Contrivance, The Gamester, The Basset-Table and A Bold Stroke for a Wife) asks the question, "What was it like to see these plays in performance?" Occupying somewhat uneasy ground between literature and theatre studies, I borrow useful tools from both, to create what might be styled a New Historicist Dramaturgy. I urge a re-examination of the period 1708-28. The standard reading of theatre of the period is that it was static. This "dry spell" of English theatre, most critics agree, was filled with stock characters and predictable plot lines. But it is during this so-called "dry spell" that Centlivre refines her stagecraft, and convinces cautious managers to bank on her work, providing evidence that playwrights of the period were subtly experimenting. The previous trend in scholarship of this cautious and paranoid era of theatre history has been to shy away from examining the plays in any depth, and fall back on pigeonholing them. But why were the playwrights turning out the work that they did? What is truly representative of the period? Continued examination may stop us from calling the period a "dry spell." For that purpose, examining some of Centlivre's early work encourages us to avoid the tendency to study only a few playwrights of the period, and to avoid the trap of focusing on biography rather than text. I propose a different kind of aesthetic, stemming from my interest in the text as precursor to performance. Some of these works may not seem fertile ground for theorists, but discarding them on that basis fails to take into account their original purpose: to entertain. digital.library.unt.edu/ark:/67531/metadc2524/
- The Categorization and Use of Three Dimensional Computer Generated Special Effects in Film
- There has been a growing trend in the film industry in the use of three dimensional computer generated images (3D CGI) for special effects. With the popularity of this relatively new medium comes the need for new terminology. This exploration developed a general system of classification for 3D CGI effects for use in film. This system was based on a study of various writings about the significant films, which employ 3D CGI effects. A three-group system of classification system was developed. The three-group system was composed of the Elements Group, Level of Reality Group, and the Kind Group. These terms were developed to aid in the day-to-day production of 3D CGI special effects in the future. digital.library.unt.edu/ark:/67531/metadc2522/
- The Design and Implementation of an Intelligent Agent-Based File System
- As bandwidth constraints on LAN/WAN environments decrease, the demand for distributed services will continue to increase. In particular, the proliferation of user-level applications requiring high-capacity distributed file storage systems will demand that such services be universally available. At the same time, the advent of high-speed networks have made the deployment of application and communication solutions based upon an Intelligent Mobile Agent (IMA) framework practical. Agents have proven to present an ideal development paradigm for the creation of autonomous large-scale distributed systems, and an agent-based communication scheme would facilitate the creation of independently administered distributed file services. This thesis thus outlines an architecture for such a distributed file system based upon an IMA communication framework. digital.library.unt.edu/ark:/67531/metadc2523/
- Learner-centered teacher beliefs and student-perceived teaching effectiveness
- Following Barr and Tagg's formalization of the concept of learner-centered educational practice at the postsecondary level as described in their seminal article in Change in 1995, survey instruments have been developed to assess teachers' beliefs about their own learner-centeredness.. The research reported in this dissertation examined the connection between college students' perceptions of teacher effectiveness on each of four dimensions appearing as questions on the IDEA Survey of student reaction to instruction and courses (developed at the IDEA Center, Kansas State University, in the early 1970s) and the Assessment of Learner-Centered Practices (ALCP): Beliefs Portion of the Postsecondary Level Instructor Survey, College Level (developed in early 1999 by B. L. McCombs, University of Denver Research Institute; alpha reliabilities reported). Using scoring rubrics accompanying the ALCP instrument, instructors were identified as learner-centered or non-learner-centered based on their responses. Independent t-tests were performed to determine whether learner-centered instructors were perceived differently by students in terms of teaching effectiveness than non-learner-centered instructors on each of four dimensions: overall excellence of course, overall excellence of instructor, effectiveness of instructor in helping students achieve relevant objectives in the course, and effectiveness of course and instructor in improving students' attitude toward the field of study. Students rated learner-centered instructors higher in all dimensions, but results were not statistically significant. Instructors were also identified as possessing learner- or non-learner-centered beliefs to a greater degree than that necessary for an overall designation. Independent t-tests were performed to determine any differences in student perceptions of effectiveness between these two groups. Again, students rated learner-centered instructors higher in all dimensions, but results were not statistically significant. Recommendations for further research with the ALCP instrument are made, including research to determine whether specific factors and/or questions prove to be statistically significant in predicting student evaluations of effectiveness. Also recommended are replications of the study to investigate moderating variables influencing accurate faculty self-identification of beliefs about teaching and learning. digital.library.unt.edu/ark:/67531/metadc2520/
- Market valuation of the translation process under SFAS No. 52: Further evidence
- This research investigates the information content of the translation information resulting from exchange rate fluctuations. Two hypotheses are examined. The dollar movement hypotheses investigate whether there is a positive relationship between security valuation and the translation information and whether the market assigns different weights to translation gains and losses in both the depreciating and appreciating exchange rate environments. The geographic concentration hypothesis tests whether the market's response to the translation information is geographically sensitive. Prior research on SFAS No. 8 and SFAS No. 52 has concentrated on the price and trading volume responses to the deliberations and issuance of these two accounting statements. Soo and Soo (1994) examine the long-term effect of the disclosure requirement under SFAS No. 52 on MNEs' security prices from 1981 to 1987. However, they fail to address two important issues pertinent to the MNE research--the effects of exchange rate changes and the geographic concentration. The dollar movement hypotheses provide strong evidence that under both the appreciating and depreciating exchange rate environments, a positive relationship exists between security returns and the translation information when MNEs disclose translation losses in stockholders' equity. The findings also provide evidence for a positive or at least non-negative relationship between security returns and the translation information when MNEs disclose translation gains. The findings provide evidence that the positive relationship is greater in appreciating than in depreciating exchange rate environment for losses, but no evidence of such a difference exists for gains. The evidence also indicates that the market reacts more to the translation information when translation losses are reported than when translation gains are reported in both exchange rate environments. The examination of the impact of the geographic concentration of MNEs' foreign operations provides limited evidence to support the geographic concentration hypothesis. One possible explanation for the weak findings is that the larger degree of the aggregation of some of the geographic disclosures prevents the market from impounding the geographic information. digital.library.unt.edu/ark:/67531/metadc2519/
- Korean Electoral Behavior: The 1992 and 1997 Presidential Elections
- This is a study of Korean presidential elections. Its purpose is to determine how Koreans voted in the 1992 and 1997 presidential elections and to examine the factors that contributed to winners. In addition, the study compares the two elections by developing three models: candidate choice, voter turnout and political interest models. Using post election data from the Korean Social Science Data Center a multinomial logit regression was used in the candidate choice model. It shows that Korean voters selected their candidates mainly in terms of interest in the elections, age, orientation toward the governing or opposition parties, the regional effects of the Southwest (Honam) and the Southeast (Youngnam), and the evaluation of merged parties in 1992 or a united candidacy of parties in 1997. A Monte Carlo simulation was also employed to test the traditional assumption of candidate strength. It indicates that Kim Young-Sam had a more cohesive support from his older supporters in the 1992 election while Kim Dae-Jung had a greater cohesive support from his older supporters in the 1997 election. Both Kim Young-Sam's and Kim Dae-Jung's loyalists were crucial to the winning candidates in the 1992 and 1997 elections respectively. How did people vote? To address this question a logit analysis of voter turnout was employed. Comparing the 1997 election to that of 1992 the findings suggest that low-probability voters in 1997 had: low efficacy, a negative evaluation of the Central Election Management Commission, claimed to be independent, young, and lived in areas other than Youngnam and Honam. Their lower turnout was a significant factor in the opposition candidate, Kim Dae-Jung's election. Finally, since political interest is closely related to political participation, an ordered logit model of political interest was developed. The results showed that the media and popularity of major candidates significantly contributed to Korean voters' interest in the elections. digital.library.unt.edu/ark:/67531/metadc2521/
- Adolescent goals and their reports of what they do to achieve those Goals
- Twenty-five adolescents' ranking of a set of equally highly valued goals on a Paired-comparisons Survey was compared with what adolescents say they are doing to achieve those goals. Results of the Paired-comparisons Survey showed that adolescents ranked career, interpersonal, and educational goals rather high and reputation and self-presentation goals rather low. Results analyzed with a contingency coefficient and biserial correlation indicated that not all number one ranked goals had the same value for a particular adolescent, and that number one ranked goals were correlated with verbal reports of concrete actions directed at achieving those goals. digital.library.unt.edu/ark:/67531/metadc2517/
- Ran, Shulamit: Concerto da Camera II, Analysis of Pitch and Formal Structure
- The thesis speculates upon the three movements of Concerto da Camera II (1987), scored for Bb clarinet, string quartet and piano) in these four aspects: 1) the formal structure, 2) the manipulation of the notes of whole-tone, octatonic, and chromatic scales in octave displacement, 3) the potential combination of subsets that present different levels of pitch transformation in melodic and harmonic structure, and 4) the usage of intervals of minor seconds, tritones, and perfect fourths or fifths which dominates the linear writing. All of these features demonstrate that the music has strong structural elements in form, motives, and sonorities, which unify the piece in an aurally coherent style as an organic whole. This study should provide more insight into the understanding of Ran's unique compositional technique and style. digital.library.unt.edu/ark:/67531/metadc2518/
- Integration of field-based analysis of plant community dynamics with quantitative analysis of landscape change in the Ray Roberts Lake area, 19871997
- This study focused on the effectiveness of integrating traditional plant community analyses with landscape ecological analyses based on remotely sensed data. A temporal analysis of plant community diversity was conducted for major plant communities of the Ray Roberts Lake area using transect monitoring data collected between 1987 and 1997. Landscape analyses were performed with FRAGSTATS*ARC using classified SPOT satellite imagery for 1987 and 1997. Although the methodology developed in this work was exploratory, it was found that characterizing the dynamics of major plant communities in the study area produced a more effective and insightful analysis of Ray Roberts Lake area landscape dynamics. digital.library.unt.edu/ark:/67531/metadc2515/
- Gestalt Work For the Actor: A Documentary Video Production
- Gestalt Work for the Actor is a documentary about Dr. Renee Vincent's Gestalt acting exercise. Students are trained to recall powerful emotions and then employ the conjured passions into performance. This documentary examines the Gestalt acting exercise and what benefits it affords actors. The accompanying production book explains the production processes: preproduction, production, and postproduction, as well as the theoretical approaches used in the documentary. digital.library.unt.edu/ark:/67531/metadc2516/
- Maximum-Sized Matroids with no Minors Isomorphic to U2,5, F7, F7¯, OR P7
- Let M be the class of simple matroids which do not contain the 5-point line U2,5 , the Fano plane F7 , the non-Fano plane F7- , or the matroid P7 , as minors. Let h(n) be the maximum number of points in a rank-n matroid in M. We show that h(2)=4, h(3)=7, and h(n)=n(n+1)/2 for n>3, and we also find all the maximum-sized matroids for each rank. digital.library.unt.edu/ark:/67531/metadc2514/
- What Happens to the Where, When and How in Malay?
- In this thesis, I analyze three positions of the wh-word in Malay and attempt to explain what accounts for the differences between them. Specifically, I consider if the movement of the wh-interrogative is really wh-movement or if something else is going on. In regard to the the in-situ wh-words and the partially moved wh-words, I consider whether these move covertly and if they do, if this is feature movement or covert phrasal movement. digital.library.unt.edu/ark:/67531/metadc2512/
- Body Matters: Gary Snyder, The Self and Ecopoetics
- Gary Snyder has offered, in poems and essays, ways to acknowledge the interrelationships of humans with the more-than-human. He questions common notions of selfness as well as understandings of what it is to be human in relationship to other species and ecosystems, and he offers new paradigms for the relationship between cultures and the ecosystems in which these cultures reside. These new paradigms are rooted in a reevaluation of our attitudes toward our physical bodies which impacts our relationship to the earth and raises new possibilities for an ecological spirituality or philosophy. The sum of Snyder's endeavors is a foundation for an understanding of ecopoetics. Snyder's poem "The Trail is Not a Trail" is an interesting place to begin examining how human perceptions of the self are central to the kinds of relationships that humans believe are possible between our species and everything else. In this poem there is a curious fusion of the speaker and the trail. In fact, with each successive line they become increasingly difficult to separate. The physical self is central to Snyder's poetry because his is a poetry of the self physically rooted in ever-shifting relationship with the biosphere. The relationship of the self to the biosphere in Snyder's poetry also points toward a spiritual experience that can be called ecomysticism, by which I mean the space where new ecological paradigms and mystical understandings of the world overlap. Ecomysticism goes beyond mysticisms that describe a spiritual being longing for supernatural experience while being "unfortunately" trapped in a physical body. Ecomysticism emphasizes the spiritual and physical interrelatedness or interconnectedness of all matter, the human and the more-than-human. The integration of the spiritual and physical aspects of the self is only possible through an awareness of the interrelatedness of the self and the non-human. New paradigms for the self are thus central to ecopoetics, a poetics that seeks to heal the rift between humans and the biosphere. digital.library.unt.edu/ark:/67531/metadc2513/
- Synthesis and characterization of molecules to study the conformational barriers of fluorocarbon chains
- Fluorocarbons are known to be stiffer than their hydrocarbon analogues, a property that underlines the extensive industrial application of fluorocarbon materials. Although there has been previous studies on the rotational barrier of molecules having fluorocarbon centers, a detailed systematic study is necessary to quantify flurocarbon stiffness. The molecules, Pyrene-(CF2)n-Pyrene, Pyrene-(CF2)n-F, Pyrene-(CH2)n-Pyrene and Pyrene-(CH2)n-H were therefore synthesized to enable the determination of the barrier to rotation of the carbon backbone in fluorocarbons. Conformational studies will be completed with steady-state and time-dependent emission spectroscopy. digital.library.unt.edu/ark:/67531/metadc2511/
- Spatial analysis of Atrazine in the Elm Fork Watershed
- This study assessed the water quality of the Elm Fork Watershed with regards to the herbicide Atrazine. Atrazine is a potential environmental endocrine disruptor and carcinogen. Overall, concentrations were lower than the four-quarter drinking water average of 3 µg/Lthe Maximum Contaminant Level set by the USEPA. However, three creek stations had four-quarter average concentrations greater than 3 µg/L, and virtually all samples exceeded the 0.1 µg/L standard set in Europe [1,2]. Statistically significant differences in concentrations were detected between the 27 sampling stations and areas of high concentrations were identified. However correlations between Atrazine concentrations and land-use and precipitation were not statistically significant. Further analysis with more detailed data should be conducted before any relationships are discarded. digital.library.unt.edu/ark:/67531/metadc2510/
- Perceived attractiveness and personality attributes: A gender and racial analysis
- Subjects rated 12 female body shapes with respect to their physical attractiveness, and the extent to which they would be expected to possess various personality characteristics. The shapes were varied using 3 levels of overall weight and 4 levels of body shapeliness. The sample was modified to control for socioeconomic factors and results are based on 297 undergraduates from Caucasian, African American, and Hispanic racial backgrounds. Loglinear analyses revealed that men and women, regardless of racial background, rated shapely underweight females as most physically attractive, sexy, and ideal for a woman, followed by normal weight figures of similar proportion. African Americans, women in particular, judged the shapely normal weight figures more favorably than the other subjects. Multidimensional scaling and subsequent frequency analyses showed that those figures judged as most attractive, sexy, and ideal were also expected to be fairly emotionally stable, and most successful and interpersonally competitive, but least faithful, kind, and family-oriented. Overweight female shapes, while rated as least physically attractive, sexy, and emotionally stable, were expected to be most family-oriented, kind, and faithful. Shapely normal weight figures were judged to be attractive and sexy, and were assumed to possess a moderate amount of the personality traits in question. The results suggest that Caucasian and Hispanic subjects prefer shapely underweight women, while African Americans, particularly women, find shapely underweight and shapely normal weight women to be physically appealing. African American women also rate shapely normal weight women favorably with respect to personality traits. This perceptual difference may help inoculate them from developing eating disturbances and account for the low prevalence rate of eating disorders in African Americans compared to women of other racial backgrounds. It is suggested that future research identify those beliefs, values or behaviors that seem to inoculate African American women from developing eating disorders. Once identified, mental health professionals may facilitate their development in those women who are likely to have eating problems. digital.library.unt.edu/ark:/67531/metadc2509/
- A study of vocabulary instruction with fourth grade students participating in an individualized reading program
- he purpose of this study was to determine the effects of one approach to vocabulary instruction on the reading and writing vocabulary of fourth grade students in an individualized reading program. The vocabulary instructional approach used student-selected vocabulary words as well as instruction in vocabulary strategies such as context clues, structural analysis, and definition strategies. The twelve week study exposed one fourth grade classroom to vocabulary instruction in a Reading Workshop setting. Major components of the program were mini-lessons, which often involved vocabulary strategies, the silent reading of self-selected books, one-on-one researcher/student interactions, and the self-selection of vocabulary words. The research design is descriptive in nature and used both qualitative and quantitative research methods. Qualitative data included student interviews, teacher interviews, student writing samples, and field note observations. Quantitative data included vocabulary test scores from two groups of students, Group A and Group B. Group A participated in the self-selected vocabulary approach and received vocabulary instruction from the researcher acting as participant observer. Group B received some vocabulary instruction from their classroom teacher, but did not participate in the same program. The test was constructed weekly from a class (Group A) generated list of ten words. Results from vocabulary tests indicate that the vocabulary instruction was effective in helping Group A learn vocabulary. Multiple exposures to words as well as use of vocabulary words in context influenced student performance on tests. Results from qualitative data indicate that students attend to vocabulary words in their print environment. In addition, students used vocabulary words in expressive language, including writing and speaking. The results of this study support opportunities for wide reading, implementation of a variety of vocabulary strategies, repeated exposures to vocabulary words, and opportunities for student choice of vocabulary, as ways to enhance vocabulary learning. digital.library.unt.edu/ark:/67531/metadc2508/
- Training Siblings of Children with Autism to Instruct Play: Acquisition, Generalization, and Indirect Effects
- A multiple baseline design was employed to evaluate the effectiveness of a sibling training package including modeling, role-play, and feedback on play and engagement between children with autism and their siblings. The results of two experiments suggest that, following training, siblings of children with autism correctly implemented all trained interaction components. Additionally, Experiment II assessed and programmed generalization to other materials and a non-training setting. The results showed that some unprogrammed generalization to non-trained toys occurred. Conversely, siblings engaged in trained skills in a non-training setting (home) only following the experimenter's instructions to generalize. In both experiments, the siblings' overall engagement and physical proximity of play in training sessions increased significantly above baseline. This study extends previous research in that it includes additional stimulus and response generalization measures. digital.library.unt.edu/ark:/67531/metadc2507/
- Effects of receiver locus of control and interaction involvement on the interpretation of service complaints
- This thesis examined how receivers who vary in Interaction Involvement and Locus of Control (LOC) might differ in their interpretations of service complaints. Locus of control was measured using Rotter's (1966) LOC scale, while Interaction Involvement was measured with Cegala's (1984) Interaction Involvement measure, including a separate assessment of the effects for each sub-scale. Individuals were assigned to four groups based on their Interaction Involvement and LOC scores. The groups were compared with one-another for differences in how complaints were interpreted. Four complaint categories and a corresponding scale were developed to measure these differences. The categories were Subject, Goal, Opportunity, and Accountability. Interaction Involvement was expected to affect how receivers interpret the subject and goal of a complaint, while LOC was predicted to affect understanding of the opportunity and accountability aspects. Two research questions explored possible relationships between the complaint categories and the independent variables for individuals within each group. The study's four hypotheses were not supported, although some evidence was found for a significant relationship between receiver Interaction Involvement and perceived complainant Opportunity, for External LOC individuals only. digital.library.unt.edu/ark:/67531/metadc2506/
- The correlation between a general critical thinking skills test and a discipline specific critical thinking test for associate degree nursing students
- In 1997, NLNAC added critical thinking as a required outcome for accreditation of associate degree nursing (ADN) programs. Until recently general critical thinking tests were the only available standardized critical thinking assessment tools. The emphasis has shifted to discipline specific tools. This concurrent validity study explored the correlation between two critical thinking tests, a general skills test, the California Critical Thinking Skills Test (CCTST) and a discipline specific test, the Arnett Critical Thinking Outcome Evaluation (CTOE). Both tests are based on the same definition of critical thinking. The CCTST, developed in 1990, covers discipline neutral content in multiple choice items. The CTOE, a free entry, written response test developed in 1998, assesses critical thinking in nursing situations using a partial credit model. A convenience sample of 434 sophomore ADN students from 9 programs in Texas completed the demographic survey and critical thinking tests in 1999. The sample was 87.9% female and 74.2% Caucasian, with a mean age of 31, mean GPA of 3.13, mean 3.7 years healthcare employment experience, mean CCTST score of 15.0023 and mean CTOE of 82.69. The sample also included 22.4% current LVNs, 15.7% with prior degrees and 53.5% in the first generation of their family to go to college. With Pearson correlation, three of four hypotheses concerning correlation between CCTST and CTOE scores were accepted, showing weak but significant correlation. GPA positively correlated but healthcare employment experience, first generation and minority status negatively correlated with CCTST scores. GPA correlated positively with CTOE scores. Stepwise multiple linear regression with CCTST scores retained GPA, healthcare employment experience, prior degree, and first generation in college status. The significant, positive correlation between CCTST and CTOE scores was weaker than expected. This may be due to the different formats of the tools, or a fundamental difference between a general critical thinking skills test and a discipline specific tool. Critical thinking is highly contextually sensitive and disciplines emphasize skills differently. Both tests may be useful in a critical thinking assessment program since they measure different aspects and contribute to a composite picture of critical thinking. Research should continue on discipline specific tools. digital.library.unt.edu/ark:/67531/metadc2505/
- A Comparison Study of Individual and Group Play Therapy In Treating Kindergarten Children With Adjustment Problems
- This study was designed to determine the effectiveness of individual child-centered play therapy in the elementary school in: 1) enhancing the self-concept of kindergarten children who are experiencing adjustment difficulties; 2) decreasing the overall behavioral problems of kindergarten children experiencing adjustment difficulties 3) decreasing externalizing behavior problems such as aggression and delinquency of kindergarten children experiencing adjustment difficulties; 4) decreasing the internalizing behavior problems such as withdrawal, somatic complaints, anxiety and depression of kindergarten children experiencing adjustment difficulties; 5) increasing parental perception of change in the problematic behaviors of kindergarten children experiencing adjustment difficulties; and 6) enhancing self-control in kindergarten children experiencing adjustment difficulties. A secondary objective was to compare the participants involved in individual child-centered play therapy with participants in a previous study who were involved in child-centered group play therapy on the above named dimensions. The experimental group, consisting of 14 kindergarten children experiencing adjustment difficulties, received 10-12, 30-minute individual play therapy sessions in a 12 week period in their elementary school. The comparison group, utilized from the 1999 McGuire study, consisted of 15 children with adjustment problems and received 12-14, 45-minute group play therapy sessions in 14 weeks in their elementary school. The control group, consisting of 13 children experiencing adjustment problems, received no play therapy intervention over a 12 week period. An Analysis of Covariance revealed significant findings in 1 of the 6 hypotheses and one subscale hypothesis examining the effectiveness of individual play therapy versus the wait list control group. Specifically, children with adjustment problems in the experimental group exhibited a significant reduction in total behavior problems and a significant reduction in externalizing behavior problems as measured by the Child Behavior Checklist-Parent Form (CBCL). Additionally, an Analysis of Covariance revealed significant findings in 1 of the 6 hypotheses examining the comparison of the effectiveness of individual play therapy versus the group play therapy comparison group from McGuire (1999). Individual play therapy was significantly more effective than group play therapy in helping children maintain an acceptable level of classroom behaviors as perceived by teachers on the Early Childhood Behavior Scale (ECBS). digital.library.unt.edu/ark:/67531/metadc2504/
- The Influence of National Standards for Early Childhood Programs on Selected Rural Settings of the Education Service Centers in East Texas
- This study addressed the current status of early childhood curriculum design and implementation in the Texas Education Service Centers Seven and Eight. No Previous research about the characteristics of the preschool programs had been completed in those areas. This research established if preschool programs were receiving priority status in East Texas. The results yielded evidence regarding the characteristics of administrators, teachers, curriculum implementation, plus parent and community involvement. The information also provided insight regarding short-term and longitudinal effects on children who have attended preschool programs. Data were collected from a search of educational literature, regional service preschool directors, administrators, and teachers. The procedure used in designing the survey and interview documents was Michael Scriven's goal-free strategy. The main sources for the questions were the National Association for the Education of Young Children and Head Start. The study first directs attention to the common characteristics of national programs/standards, then discusses the level of implementation in local rural prekindergartens. The fifteen open-ended interviews yielded concise information relevant to the population of students served and administrative beliefs on current practices. Surveys were sent to a total of all preschool administrators in the Education Service Center Regions of Seven and Eight. A 51 percent response rate was received. The results of the analysis demonstrated the direction current administrators hope early childhood will take in the areas of 1) developmentally-centered curriculum, 2) parental and community input, and 3) professional development. The administrators' commitments and focal points were correlated with the national standards. Recommendations are made that should result in an overall increase of successful prekindergarten and high school graduates. digital.library.unt.edu/ark:/67531/metadc2502/
- Student services in Bible colleges and universities accredited by the Accrediting Association of Bible Colleges (AABC)
- This study attempted to determine the types, extent, and quality of student personnel services in colleges and universities accredited by the Accrediting Association of Bible Colleges (AABC). The Basic Services Questionnaire (BSQ) was adapted for use among Bible colleges and universities and mailed to chief student affairs officers representing 69 Bible colleges in the United States accredited by the AABC. Of the 71 surveys mailed (two institutions employed both a Dean of Men and Dean of Women), 46 were returned for a response rate of 65 percent. Chi-square tests of goodness-of-fit were performed on the data in order to categorize the types, extent, and quality of student services provided by the institutions. The Mueller-Schuessler Index of Qualitative Variation was used to determine the homogeneity, or heterogeneity, of the chief student affairs officers when grouped according to specific variables (gender, ethnic origin, major for highest degree earned, and highest degree earned). Frequency counts and percentage distributions were used on demographic data to present a profile of chief student services administrators at AABC schools. The results of the study point to four conclusions. First, the types of student personnel services provided by American Bible colleges and universities accredited by the AABC closely match those offered by the Southern Association of Colleges and Schools (SACS) as essential to student services divisions within colleges or universities. Second, the extent of the student personnel services provided by American Bible colleges and universities accredited by the AABC was average to broad. Student services such as student development and financial aid were rated as broad to very broad. Third, quality of student personnel services at AABC institutions was fair to good. Financial aid services and student activities were rated as very good. Fourth, the chief student affairs officers at American Bible colleges and universities accredited by the AABC were homogeneous in regard to gender, ethnicity, and education. digital.library.unt.edu/ark:/67531/metadc2503/
- Assessing learning disabilities: Effectiveness of the symbol language and communication battery (SLCB)
- This study examined whether the Symbol Language and Communication Battery (SLCB), a measure of learning disabilities (Lds), could identify children with Lds. In addition, possible behavioral differences were examined between unidentified and identified children. Eighty-five students (26 with school identified Lds; 59 unidentified) in the 4th and 5th grade participated in the study. Results indicated that the SLCB has good potential as a supplemental/screening measure of Lds. The SLCB was most effective in identifying children when SLCB diagnoses were restricted to the areas of reading, math, and writing. This study also found that teachers reported more behavioral problems in children with an SLCB diagnosis than children without a diagnosis, whereas unidentified children with SCLB diagnoses reported more behavioral problems than identified children. digital.library.unt.edu/ark:/67531/metadc2501/
- The Texas Bandmasters Association: A Historical Study of Activities, Contributions, and Leadership (1920-1997)
- The purpose of the study was to investigate the leadership role of the Texas Bandmasters Association (1920-1997) in the development of the band program in Texas. It sought to determine TBA's effect on the band movement in Texas, and ascertain how the TBA has contributed to the emphasis on performance focus that is associated with the Texas band tradition. In doing so, the study also provided information regarding the association's goals, purposes, activities, and contributions during the time period under investigation. The historical data for the study was compiled from documentary sources and personal interview. Documentary sources included minutes of meetings from 1920-1997, information contained in various periodicals including the Southwestern Musician combined with the Texas Music Educator, and a nearly complete set of clinic-convention programs. Historical data from past researchers, including several masters theses and doctoral dissertations, and tapes and transcripts of interviews conducted by past researchers, as well as interviews conducted by this researcher, were also utilized. Much of the historical data for the study was located at the Texas Music Educators Association archives, housed at the association headquarters in Austin, Texas. The researcher identified five periods of the association's history. In addition to developing a historical chronology, the study identified prominent leaders for each historical period and explored how these individuals shaped the development of the association, which has grown from a small group of municipal bandmasters in 1920, into the largest state band association in the world, with over 2,200 active members. The researcher chronicles the events that led up to the first annual clinic-convention in 1948, and continues through the fiftieth clinic-convention in 1997. Although the first clinic-conventions focused on new music and the marching band exclusively, over the years this original concept has expanded and now encompasses virtually every aspect of band work. The study sought answers to the following research questions: (1) Who were the primary leaders of the association during each historical period? (2) What was TBA's leadership structure during each period? What was its effect on the growth and development of the association? (3) What were TBA's goals and activities during each historical period and to what extent were the goals of the association achieved? What role did the leadership play in achieving these goals? What were TBA's contributions to the band movement in Texas during each historical period? (4) TBA has come to find its present niche in the presentation of an annual clinic-convention centered, at least initially, on new music and the marching band. What was the role of the leadership in making this present state of affairs become reality? Using a previous leadership model, the researcher found that the leaders identified were mainly elected officers and/or executive secretaries of the association. The leadership structure changed over the years in order to meet the association's needs at the time. Goals, activities, and contributions were discussed for each historical period and evaluations were made regarding the extent to which the association's goals were achieved. Finally, the role of the leadership in making the current state of affairs become reality was discussed, as well as recommendations for further research. digital.library.unt.edu/ark:/67531/metadc2499/
- Emotional/behavioral disturbance and speech/language disorders: Prevalence of the dual diagnoses in a school-age population
- The purpose of this study was to examine the prevalence of the comorbidity of emotional/behavioral disorders (EBD) and speech/language disorders among those students identified as under The Individuals With Disabilities Education Act criteria as emotionally disturbed and speech impaired. The literature reviewed included clinical and school settings that examined a cooccurrence of language disorders in the EBD population. Other research reported a lack of routine involvement of speech/language therapists in the assessment of the EBD population. Implications from clinical studies suggested a need for greater attention to language disorders in a multi- and interdisciplinary assessment. This study investigated the prevalence of the dual occurrence of EBD and speech/language disorders in Grades 2 through 6 in Texas schools in light of the known research. Relationships in ethnicity and socioeconomic status were examined using chi-square test of independence. Aggregate data were obtained from the database of the Texas Pupil Information Management System and from survey questionnaire responses provided by speech therapists in selected districts. The literature review focused on the impact of language in the development of appropriate personal interactions and communication skills, especially those relevant to pragmatic language factors and the implications of language competency in successful personal living and career roles and supported the importance of language as an important contributor to a person's life success and the correlation of EBD disabilities and speech/language disorders. Social skills instruction, the relationship of language, especially pragmatics, and social competencies for this population are included. The results revealed a relationship between ethnicity and speech/language disorders among the students identified with EBD. In considering the population of students identified as EBD and language disordered, a significant relationship was found between ethnicity and socioeconomic status. Recommendations include suggestions for future research, assessment procedures, classroom interventions, and data collection methods. digital.library.unt.edu/ark:/67531/metadc2498/