UNT Theses and Dissertations - 284 Matching Results

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Workplace Violence Prevention Training: An Analysis of Employees' Attitudes

Description: The purpose of this study was to determine employees' attitudes and perceptions toward the effectiveness of workplace violence prevention training within a U.S. Government service agency with 50 offices located in Minnesota and Wisconsin. Chapter 1 presents an overview of the phenomenon of workplace violence, the movement toward prevention programs and policies and the implementation of prescreening processes during hiring and violence prevention training. Chapter 2 contains a thorough review of pertinent literature related to violence prevention training and the impact of occupational violence on organizations. This topic was worthy of research in an effort to make a significant contribution to training literature involving organizational effectiveness due to the limited amount of research literature covering the area of corporate violence prevention training and its effect on modifying attitudes and behaviors of its customers. The primary methodology involved the assessment of 1000 employees concerning their attitudes and perceptions toward the effectiveness of workplace violence prevention training. The research population were administered a 62 item online assessment with responses being measured, assessed, and compared. Significant differences were found calling for the rejection of the three study hypotheses. Chapter 4 described the findings of the population surveyed and recommendations were identified in Chapter 5.
Date: May 2005
Creator: Adriansen, David J.
Partner: UNT Libraries

Present tense marking as a synopsis of Southern American English: Plural verbal -s and zero 3rd singular.

Description: This thesis explores the evolution plural verbal -s ("People thinks he is guilty") and zero 3rd singular ("He think he is guilty") in data from two sources on Southern English: The Linguistic Atlas of the Gulf States (LAGS) and The Linguistic Atlas of the Middle and South Atlantic States (LAMSAS). The research questions that underlie this study consider (1) the demographic association of plural verbal -s and zero 3rd singular, (2) the maintenance of each form, (3) the constraints on their use, and (4) the origins of -s variability. The atlas data suggest the following for plural verbal -s: (1) it has a British source, (2) it was present in both African American Vernacular English (AAVE) and early Southern White English (SWE), and (3) there were different grammatical constraints on its use in AAVE and SWE. Data for zero 3rd singular -s suggest this form (1) did not have a British source and (2) that it has historically been an AAVE feature.
Date: May 2005
Creator: Aguilar, Amanda G.
Partner: UNT Libraries

Determination of Habitat Preferences of Pronghorn (Antilocapra americana) on the Rolling Plains of Texas Using GIS and Remote Sensing

Description: The Rocker b Ranch on the southern Rolling Plains has one of the last sizeable populations of pronghorn (Antilocapra americana) in Texas. To investigate habitat utilization on the ranch, pronghorn were fitted with GPS/VHF collars and were released into pastures surrounded by a variety of fences to determine how fence types affected habitat selection. Habitat parameters chosen for analysis were vegetation, elevation, slope, aspect, and distances to water, roads, and oil wells. Results showed that pronghorn on the ranch crossed modified fencing significantly less than other types of fencing. Pronghorn selected for all habitat parameters to various degrees, with the most important being vegetation type. Habitat selection could be attributed to correspondence of vegetation type with other parameters or spatial arrangements of physical features of the landscape. Seasonal differences in habitat utilization were evident, and animals tended to move shorter distances at night than they did during daylight hours.
Date: May 2005
Creator: Aiken, Robin A.
Partner: UNT Libraries

Makeshift Information Constructions: Information Flow and Undercover Police

Description: This dissertation presents the social virtual interface (SVI) model, which was born out of a need to develop a viable model of the complex interactions, information flow and information seeking behaviors among undercover officers. The SVI model was created from a combination of various philosophies and models in the literature of information seeking, communication and philosophy. The questions this research paper answers are as follows: 1. Can we make use of models and concepts familiar to or drawn from Information Science to construct a model of undercover police work that effectively represents the large number of entities and relationships? and 2. Will undercover police officers recognize this model as realistic? This study used a descriptive qualitative research method to examine the research questions. An online survey and hard copy survey were distributed to police officers who had worked in an undercover capacity. In addition groups of officers were interviewed about their opinion of the SVI model. The data gathered was analyzed and the model was validated by the results of the survey and interviews.
Date: August 2005
Creator: Aksakal, Baris
Partner: UNT Libraries

Higher Education and Entrepreneurship: The Relation between College Educational Background and Small Business Success in Texas

Description: This study examined the relationship between success of small businesses and the educational backgrounds of their owners. A survey composed of questions concerning demographics, educational backgrounds, and business success was mailed to 1100 businesses in Dallas, Denton, and Tarrant counties in Texas. There were 228 usable responses which were analyzed by using the Statistical Package of Social Sciences (SPSS12). Data were sorted so that educational level, sales volume, number of employees, and longevity, were identified on a 5-point ordinal scale. Educational major was identified on a 5-point nominal scale. Pearson's correlation was used to determine whether relationships existed between founders' educational background and small business success. Spearman's correlation was used to determine the direction and strength of the relationships. Then educational level and major were combined with age, gender, ethnicity, and industry, to determine the relationships between founders' educational background, and business success. For this purpose a canonical correlation was used. Five opinion questions concerned influence of college education on business success among college graduates and non-college graduates were identified on a 5-point Likert scale and tested using one-way ANOVA, and independent sample t-test. When educational level and major were the only predictors of business success, a statistically significant relationship was found between years of formal education, and sales volume. When educational level and major were combined with age, gender, ethnicity, and industry, a statistically significant relationship was found between founders' educational level and age, and business success. A statistically significant and negative relationship was found between founders' educational major and industry, and business success. All opinion questions revealed statistically significant relationships between owner's college education and business success. These relationships indicate the ability for the owner to learn, adapt and maintain a successful business. The influence of a college education on small business success was noticeable and reflects the ...
Date: May 2005
Creator: Al-Zubeidi, Mohammad
Partner: UNT Libraries

Iconoclast in the mirror.

Description: This work explores identity positions of speakers in modern and contemporary poetry with respect to themes of subjectivity, self-awareness, lyricism, heteroglossia, and social contextualization, from perspectives including Bakhtinian, queer, feminist and postructuralist theories, and Peircian semiotics. Tony Hoagland, W.H. Auden, Adrienne Rich, and the poetic prose of Hélène Cixous provide textual examples of an evolving aesthetic in which the poet's self and world comprise multiple dynamic, open relationships supplanting one in which simple correspondences between signifiers and signifieds define selves isolated from the world. Hypertext and polyamory serve as useful analogies to the semantic eros characteristic of such poetry, including the collection of original poems that the critical portion of this thesis introduces.
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Date: August 2005
Creator: Alexander, Lydia L.
Partner: UNT Libraries

An Examination of Methodological Rigor and Its Effects on Organizational Development and Change Outcomes

Description: Organizational development and change (ODC) is a broad field because change occurs in all organizations, occurs at multiple organizational levels, consists of numerous interventions, and can impact multiple outcomes. Many ODC efforts attempt to examine the effectiveness of their initiatives, yet fail to account for the quality, or rigor of their methods. The purpose of this paper is to examine how methodological rigor and intervention implementation quality impact ODC outcomes. The results indicate that overall methodological rigor is not a significant predictor of organizational change outcomes; however, several individual rigor criteria exhibit predictive power. Implementation quality is a significant predictor of organizational outcomes, but in a negative direction.
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Date: May 2005
Creator: Alexander, Sandra G.
Partner: UNT Libraries

Assessing the Adlerian Personality Priorities: A Formal Instrument for Therapeutic Practice

Description: The purpose of this study was to develop an effective formal instrument to assess the Adlerian personality priorities. The development of the Allen Assessment for Adlerian Personality Priorities, AAAPP, seeks to provide a strong comparability to assessing the Adlerian construct of personality priorities as the counselor interview. One hundred and seven participants were given the 1st administration of the AAAPP, Social Interest Scale and a demographic survey. Sixty-four participants completed a 2nd administration of the AAAPP two weeks later. Twenty participants experienced a counseling interview following the 2nd administration. The methods used to evaluate the validity and effectiveness of the AAAPP included: face validity, predictive validity, construct validity, test-retest reliability, multiple regression, Guttman split-half reliability and the Spearman Brown reliability.
Date: May 2005
Creator: Allen, Elizabeth Gayle Soules
Partner: UNT Libraries

"My Vagina" and other stories.

Description: This thesis includes seven short stories and a critical afterword. The afterword places the stories in their literary historical context in regards to creative nonfiction. It goes on to discuss the craft of fictionalizing autobiographical stories. Each of the stories should stand alone, though they follow the narrator's life for a number of years. Harlin Anderson is the narrator of all the stories.
Date: August 2005
Creator: Anderson, Aaron W.
Partner: UNT Libraries

Aesthetic Models and Structural Features in Concerto for Solo Percussion and Concert Band

Description: Concerto for Solo Percussion and Concert Band was commissioned by Staff Sergeant Rone Sparrow, a percussionist with the West Point Military Academy Band. Funding for the project was provided by the Barlow Foundation. The piece was premiered April 13, 2005 in the Eisenhower Hall Theater at West Point, New York. Rone Sparrow performed with the USMA band, and Colonel Thomas Rotondi Jr., Commander/Conductor, conducted the piece. The concerto consists of three movements, and each movement features a different instrument: the first features marimba, the second, vibraphone, and the third movement features the drum kit together with a rhythm section (piano, bass, and drums). In addition to the piece, the dissertation paper discusses important technical detail related to the piece, including: harmony, form, rhythm, programmatic ideas as they relate to motivic strands, and the process of generating and discarding material. The paper also focuses on a number of factors that were influential to the piece, such as postmodern philosophy.
Date: December 2005
Creator: Anderson, Stephen Reg
Partner: UNT Libraries

Effects of a Trained Therapy Dog in Child-Centered Play Therapy on Children's Biobehavioral Measures of Anxiety

Description: This study was concerned with reducing children's anticipatory anxiety when entering mental health services for the first time. The purpose of this study was to determine whether combining two effective modalities, play therapy and animal-assisted therapy, would be effective in decreasing children's biobehavioral measurements of anxiety. Specifically, this study examined the effects of the presence of a trained therapy dog during one individual 30-minute play therapy session. The experimental group consisted of 26 children who received one individual 30-minute play therapy session with the presence of a trained therapy dog. The comparison group consisted of 25 children who received one individual 30-minute play therapy session without the presence of a trained therapy dog. The SenseWear® PRO 2 armband monitor measured children's biobehavioral measurements such as galvanic skin response, temperature, and activity level (BodyMedia, Inc., Pittsburgh , PA , www.bodymedia.com). The Tanita 6102 Cardio® digital heart rate monitor measured children's pre-treatment and post-treatment heart rates (Tanita Corporation of America, Inc., Arlington Heights , IL , www.tanita.com). Five hypotheses were tested using repeated measures ANOVA with mixed factors and eta squared. All five hypotheses in this study were retained based on statistical significance at the .05 level. The combination of child-centered play therapy (CCPT) and animal-assisted therapy was shown to have little practical significance in decreasing children's first 5-minute biobehavioral measurements, middle 5-minute biobehavioral measurements, last 5-minute biobehavioral measurements as measured by the SenseWear Pro 2 armband monitor. The combination of CCPT and animal-assisted therapy was shown to have little practical significance in decreasing children's pre-treatment and post-treatment heart rate. The results of the two factor repeated measures analysis of variance with mixed factors were not statistically significant. Although, research has shown that play therapy is an effective modality in reducing children's anxiety over time, children's anticipatory anxiety was increased in the ...
Date: May 2005
Creator: Athy, Annette L.
Partner: UNT Libraries

Ethics in Technical Communication: Historical Context for the Human Radiation Experiments

Description: To illustrate the intersection of ethical language and ethical frameworks within technical communication, this dissertation analyzes the history and documentation of the human radiation experiments of the 1940s through the 1970s. Research propositions included clarifying the link between medical documentation and technical communication by reviewing the literature that links the two disciplines from the ancient period to the present; establishing an appropriate historiography for the human radiation experiments by providing a context of the military, political, medical, and rhetorical milieu of the 1940s to the 1970s; closely examining and analyzing actual human radiation experiment documentation, including proposals, letters, memos, and consent forms, looking for established rhetorical constructions that indicate a document adheres to or diverts from specific ethical frameworks; and suggesting the importance of the human radiation documents for studying ethics in technical communication. Close rhetorical analysis of the documents included with this project reveals consistent patterns of metadiscourse, passive and nominal writing styles, and other rhetorical constructions, including negative language, redundancies, hedges, and intensifiers, that could lead a reader to misunderstand the writer's original ethical purpose. Ultimately this project finds that technical communicators cannot classify language itself as ethical or unethical; the language is simply the framework with which the experimenters construct their arguments and communicate their work. Technical communicators can, however, consider the ethical nature of behavior according to specific ethical frameworks and determine whether language contributes to the behavior.
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Date: August 2005
Creator: Audrain, Susan Connor
Partner: UNT Libraries

Medication adherence among the elderly: A test of the effects of the Liberty 6000 technology.

Description: Medication adherence is a formidable challenge for the elderly who may have several prescribed medications while dealing with limited incomes and declining health. The primary purpose of this study was to evaluate the Liberty 6000, an automated capsule and tablet dispenser that provides proper medication dosages and is intended to encourage and track medication adherence. Seven focus groups were assembled; these comprised 49 men and women ages 65 to 98 years of Black, Anglo, and Hispanic descent who met the following criteria: living independently or semi-independently, had suffered one or more impairments, and were taking at least three prescription medications. Each focus group session lasted 90 minutes and was tape-recorded and transcribed verbatim, resulting in about 2,600 lines of text. Each question was designed to be open-ended to avoid introducing any bias that might influence the response. The Health Belief Model conceptually guided the study that addressed perceptions of illness susceptibility and severity, barriers, benefits, and cues to action associated with medication adherence. Main benefits of taking medications included avoiding inherited illnesses (or tendencies for illnesses), and reducing illness symptoms. Barriers to taking medications included forgetting, dexterity problems, and high cost. Benefits of the proposed intervention included reminding, caregiver notification, and providing a printed log of medications taken and missed. Barriers associated with the Liberty 6000 included its relatively large size, the difficulties that confronted older adults when loading the device, and its perceived cost. Using an adoption prediction model proposed a way to overcome barriers and encourage acceptance as well as a strategy to maintain acceptance over time. The model also can be used to evaluate a wide variety of medical devices for elderly people. This study identified the advantages and disadvantages of the Liberty 6000. Findings also suggest areas for further investigation by the nursing community and healthcare ...
Date: December 2005
Creator: August, Suzanne M.
Partner: UNT Libraries

Pyrimidine Enzyme Specific Activity at Four Different Phases of Growth in Minimal and Rich Media, and Concomitant Virulence Factors Evaluation in Pseudomonas aeruginosa

Description: Pseudomonas aeruginosa is a Gram-negative rod, aerobic, non-fermenting, oxidase positive, pigment producing, and nutritionally versatile bacterium. Infections by P. aeruginosa are the most important cause of morbidity and mortality in immunocompromised patients, given virulence factor production that suppresses antibiotic therapy and promotes persistent infection. This research is the first comprehensive report of the pyrimidine biosynthetic pathway for all phases of growth in minimal and rich media coupled with the evaluation of virulence factor production of P. aeruginosa in comparison to four other bacterial species (Pseudomonas putida, Pseudomonas fluorescens, Burkholderia cepacia, and Escherichia coli wild-type strains). Cellular growth and passing genetic information to the next generation depend on the synthesis of purines and pyrimidines, the precursors of DNA and RNA. The pyrimidine biosynthetic pathway is essential and found in most organisms, with the exception of a few parasites that depend upon the pyrimidine salvage pathway for growth. Both the pyrimidine biosynthetic and salvage enzymes are targets for chemotherapeutic agents. In our laboratory, research on pyrimidine auxotrophic mutants showed the role of the pyrimidine biosynthetic pathway and its intermediates on P. aeruginosa metabolism and impaired virulence factors production. The present research shows that pyrimidine enzymes are active in all phases of growth, including the production of two forms of ATCase in the late log phase in P. aeruginosa. This finding may be explained by the displacement of the inactive PyrC' by the active PyrC or PyrC2 to form a new and larger pyrBC encoded ATCase. Pseudomonas aeruginosa wild-type appears to produce by far the most virulence factors, haemolysin, iron chelation, rhamnolipid, adherence, and three types of motility (swimming, swarming, and twitching) investigated in this study, when compared to the other four wild-type strains. Growth analysis was carried out as typically done in minimal medium but also in rich medium to simulate conditions ...
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Date: December 2005
Creator: Azad, Kamran Nikkhah
Partner: UNT Libraries

N-Heterocyclic Carbenes of the Late Transition Metals: A Computational and Structural Database Study

Description: A computational chemistry analysis combined with a crystallographic database study of the bonding in late transition metal N-heterocyclic carbene (NHC) complexes is reported. The results illustrate a metal-carbon bond for these complexes, approximately 4% shorter than that of a M-C single bond found in metal alkyl complexes. As a consequence of this result, two hypotheses are investigated. The first hypothesis explores the possibility of multiple-bond character in the metal-carbon linkage of the NHC complex, and the second, considers the change in the hybridization of the carbenoid carbon to incorporate more p character. The latter hypothesis is supported by the results. Analysis of these complexes using the natural bond orbital method evinces NHC ligands possessing trans influence.
Date: May 2005
Creator: Baba, Eduard
Partner: UNT Libraries

Organizational development: A comparison of individual and organizational level change.

Description: Organizational change and development (OCD) has been studied by researchers to identify the effectiveness of change initiatives. Because of the broad scope of interventions in OCD, these studies have covered a range of areas including multiple interventions and the methodological rigor used by researchers. However, few have looked at organizational versus individual change within an organization, to examine whether individual change is more effective than organizational change. The purpose of this study is to determine if organizational change occurs in a top down or bottom up manner. A meta-analysis was conducted using 238 field experiments. Each study was coded for intervention and organizational outcome and for individual or organizational level variables. Effect sizes were calculated for each study, each level, and each level by intervention and outcome measure. Results indicate that while OCD interventions overall had a moderate effect size, the level of intervention or outcome was not a moderating variable.
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Date: August 2005
Creator: Barnett, Michelle L.
Partner: UNT Libraries

The Effects of a Career Education Program on the Career Choices of Fifth-grade Students.

Description: The career development of students, demonstrated by students' career interest, is important for a more effective career education program. This study focused on the career choices of fifth grade students through the use of a career interest inventory before and after the use of a career education program. The design was experimental, and the purpose was to determine if there were differences in the career interest of fifth grade students who participated in a career education program compared with the career interest of fifth grade students who did not participate in a career education program. The COPS-PIC Picture Inventory of Careers (COPS-PIC) was used as a pretest and posttest for fifth grade students to determine baseline career interests. The COPS-PIC career inventory results were incorporated into the career education program and served as a career planning guide for incorporating students' input into career choices and exploration of those choices for a better understanding of the process of finding out who they want to be and what type of careers exists. The experimental group was provided instruction and career exploration opportunities for 4 weeks. The control group was not provided career education instruction and career exploration opportunities. This study suggests that fifth grade students who participated in a career education program were able to make more concentrated career choices at higher levels of interest after participating in the career education program. Additional studies that include the use of career interest inventories and a career education program are needed before extensive generalizations can be made.
Date: December 2005
Creator: Barton-Cox, Florence Faye
Partner: UNT Libraries

The Administration of Spain Under Charles V, Spain's New Charlemagne

Description: Charles I, King of Spain, or Charles V, Holy Roman Emperor, was the most powerful ruler in Europe since Charlemagne. With a Germanic background, and speaking French, Charles became King of Spain in 1516. Yet secondary sources and available sixteenth century Spanish sources such as Spanish Royal Council records, local records of Castro Urdiales in Castile, and Charles's correspondence show that he continued the policies of his predecessors in Spain, Ferdinand of Aragon and Isabella of Castile. He strove to strengthen his power and unify Spain and his empire using Castilian strength, a Castilian model of government, Roman law, religion, his strong personality, and a loyal and talented bureaucracy. Charles desired to be another Charlemagne, but with his base of power in Spain.
Date: May 2005
Creator: Beard, Joseph
Partner: UNT Libraries

A Question of Queerness: Case Studies of Contemporary American Television

Description: This project utilizes a case study approach to explore the various ways in which the portrayals of gay people have changed on American television. Three contemporary programs - Will & Grace, Queer Eye for the Straight Guy and The L Word - are examined as examples of how far American television has progressed in terms of treating gay people with respect. Whether those shows move beyond merely presenting gay characters and into a level of actively challenging mainstream views on gay people is also examined. Findings suggest different factors affect the ability of the individual programs to test said views - including the genres to which each belongs, and their presence on network television (Will & Grace), basic cable (Queer Eye for the Straight Guy) or premium cable (The L Word). While all three programs show some tendencies toward queerness, they also take steps toward negotiating with mainstream culture, indicating that complete queerness may be an unattainable goal on American television.
Date: December 2005
Creator: Bentley, Jon Alexander
Partner: UNT Libraries

Knowledge management in virtual organizations: A study of a best practices knowledge transfer model.

Description: Knowledge management is a major concern for organizations today, and in spite of investments in technology, knowledge transfer remains problematic. This study sought to determine whether a relationship exists among participant group demographics (experience), implementation of an integrated knowledge transfer system (best practices model), knowledge transfer barriers, and knowledge transfer project (Web-based training) outcome in a virtual organization. The participant organization was a network of individuals and groups who practice patient advocacy in the research and treatment of cancer. These advocates volunteer in various capacities and are not collocated nor do they report to any single organizational entity. Volunteer participants were randomly assigned to a treatment or control condition. The treatment participants received a training supplement based upon a best practices knowledge transfer model. All participants reviewed a Web-based communications training module scheduled for deployment by the participant organization. Upon completion of the training program, participants were instructed to practice specific techniques from the program. At the end of this period, participants completed an online survey that measured demographics, perceived barriers to the knowledge transfer, and project outcome. Knowledge transfer barriers were defined as knowledge, source, recipient, and organizational context characteristics that inhibit the expected transfer. Project outcome was a composite score of items measuring completion time, budget, and satisfaction of the user. Multiple regression identified two significant predictor variables, source (the training program and implementation) and experience (amount of time spent in advocacy practice). Additional analyses found knowledge (causal ambiguity and unproven knowledge) and the experimental treatment condition to show a strong relationship with the explained variance of the dependent variable, knowledge transfer project outcome. Results suggest that an online training implementation is a valid tool for certain specific transfer design characteristics. Experience was a negative predictor of outcome, suggesting that participant-specific level of training material may produce improved ...
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Date: May 2005
Creator: Berryman, Reba
Partner: UNT Libraries

Job embeddedness versus traditional models of voluntary turnover: A test of voluntary turnover prediction.

Description: Voluntary turnover has historically been a problem for today's organizations. Traditional models of turnover continue to be utilized in a number of ways in both academia and industry. A newer model of turnover, job embeddedness, has recently been developed in an attempt to better predict voluntary turnover than existing models. Job embeddedness consists of organizational fit, organizational sacrifice, and organizational links. The purpose of this study is to two fold. First, psychometric analyses were conducted on the job embeddedness model. Exploratory factor analyses were conducted on the dimensions of job embeddedness, which revealed a combined model consisting of five factors. This structure was then analyzed using confirmatory factor analysis, assessing a 1, 3, and 5 factor model structure. The confirmatory factor analysis established the use of the 5 factor model structure in subsequent analysis in this study. The second purpose of this study is to compare the predictive power of the job embeddedness model versus that of the traditional models of turnover. The traditional model of turnover is comprised of job satisfaction, organizational commitment, and perceived job alternatives. In order to compare the predictive power of the job embeddedness and traditional model of voluntary turnover, a series of structural equation model analyses were conducting using LISREL. The job embeddedness model, alone, was found to be the best fit with the sample data. This fit was improved over the other two models tested (traditional model and the combination of the traditional and job embeddedness model). In addition to assessing which model better predicts voluntary turnover, it was tested which age group and gender is a better fit with the job embeddedness model. It was found that the job embeddedness model better predicts turnover intention for older respondents and males.
Date: December 2005
Creator: Besich, John
Partner: UNT Libraries

Relationship between the amount of parental supervision time and child delinquency.

Description: This study assesses the relationship between parental supervision and children's delinquency. Data used in this study came from interviews with 99 parents from the Denton city area of Texas in 2003. A probability sample of 53 was contacted by way of randomly selected residential telephone numbers. In addition, 46 parents were non-randomly selected. Parents were asked about how much time they spent supervising and engaging in activities with their children and whether or not the oldest child exhibited delinquent behavior such as fighting, playing hooky, and being sent to detention or the principal's office. The study found that the more time parents spend in supervision and in engaging activities with their daughters, the less likely these children were to exhibit delinquent behavior. This was consistent with previous research. However, the level of delinquency of boys increased with the increase in the amount of parental supervision time, especially by fathers.
Date: May 2005
Creator: Bessa, Yawo Agbessi
Partner: UNT Libraries

Effect of Early Childhood Teacher Characteristics on Classroom Practice, Quality, and Child Abilities

Description: The National Institute of Child Health and Human Development (NICHD) is funding and supporting a longitudinal study of Early Child Care. Beginning in 1991, data was collected from ten sites across the United States and included 1,364 families with a newborn child. This study used the NICHD Early Child Care data set to investigate characteristics of teachers that provide childcare in a daycare-like setting or childcare centers. Specifically, the relationship between early childhood teacher endorsement of developmentally appropriate belief systems and teacher education in early childhood were examined to determine their potential influence on the teachers' developmentally appropriate classroom practices, global rating of classroom quality, and child cognitive abilities. These relationships were examined at two time periods- at child age 36 months and child age 54 months. The results indicated that many of these relationships were significant. Interestingly, many of the significant findings were present only at child age 54 months.
Date: August 2005
Creator: Bivona, Jenny M.
Partner: UNT Libraries

Effects of Childhood Sexual Abuse on Brain Function as Measured by Quantitative EEG, Neuropsychological, and Psychological Tests

Description: Childhood sexual abuse (CSA) has been the subject of much recent controversy as a result of Rind, Tromovitch and Bauserman's (1998) meta-analytic examination of CSA, which found a weak relationship between CSA and self-reported psychopathology in college samples. There have been few studies of CSA which look beyond self-report. The present study is an exploration of the relationships between CSA, quantitative electroencephalographic (QEEG), neuropsychological, and psychological measurements in 24 high-functioning, unmedicated CSA adults who were matched for age, gender, and handedness with a group of adults without CSA (NCSA). The objectives of this study were to: 1) examine EEG abnormalities associated with CSA, 2) investigate QEEG cortical coherence in the groups using neuroelectric Eigen image (NEI) connectivity indices (Hudspeth, 1999), 3) integrate personality differences associated with CSA with EEG differences, and 4) better understand left versus right hemisphere functioning in CSA using intelligence testing. An examination of QEEG cortical coherence revealed moderate to large effect sizes indicating patterns of decreased connectivity between brain regions on the right frontally in the delta band, and frontally and centro-temporally on the right in the alpha band, and posteriorly in the alpha and beta bands, as well as in the cross-correlation; increased connectivity between brain regions was evidenced centrally across the motor strip and on the left temporally in the delta band, which differentiated the groups. Large effect sizes obtained on measures of personality were related to poorer adjustment for CSA adults in comparison to NCSA adults. In contrast to prior findings with clinical groups (Black, Hudspeth, Townsend, & Bodenhamer-Davis, 2002; Ito et al., 1993), hypotheses related to QEEG cortical coherence (left hemisphere alpha hypercoherence and right hemisphere theta hypocoherence), EEG abnormalities, and IQ (Verbal less than Performance) were not supported. Walker's (2003) theoretical modular coherence model was utilized to integrate coherence and personality ...
Date: August 2005
Creator: Black, Lisa Myers
Partner: UNT Libraries