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The Effects of Leadership Development on Student Retention in STEM

Description: The Science Teaching and Research (STAR) Leadership Program at Austin College was designed to intentionally include leadership development into the science curriculum and provides an opportunity to determine the effects of student leadership development on the retention of students in science, technology, engineering, and mathematics (STEM). This dissertation used a quasi-experimental design to determine: 1) if STEM retention can be explained though the inclusion of leadership development int… more
Date: May 2020
Creator: Smith, Caleb Michael
Item Type: Refine your search to only Thesis or Dissertation
open access

The Effects of Learning to Program a Computer in BASIC or LOGO on the Problem-Solving Abilities of Fifth Grade Students

Description: The purposes of this study were (1) to determine if learning to program a computer in either BASIC or Logo improves the problem-solving skills of fifth grade students when compared to a control group that receives no programming instruction, and (2) to determine if learning to program a computer in Logo is more effective than learning to program in BASIC for improving problem-solving skills in fifth grade students. Subjects were 132 fifth graders from two suburban elementary schools. The materi… more
Date: August 1984
Creator: Shaw, Donna Gail
Item Type: Refine your search to only Thesis or Dissertation
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The Effects of Lecture Discussion and Group Centered Counseling on Parents of Moderately Mentally Retarded Children

Description: The problem of this study was to determine if involvement in lecture-discussion classes of group centered counseling would significantly alter anxiety level, aspects of self-concept, or knowledge of mental retardation in parents of moderately mentally retarded children.
Date: May 1971
Creator: Siegel, Edward Morton
Item Type: Refine your search to only Thesis or Dissertation
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The Effects of Listening Skills Instruction on Students' Academic Performance

Description: Although it is widely assumed that listening is among the most important learning skills (Wolvin & Coakley, 1988), an examination of the literature indicates that it has been woefully neglected as subject matter in schools. Listening has also been neglected as an area of research. Surveys have been conducted to see if listening is being taught or can effectively be taught, but little evidence exists to suggest that effectively teaching listening improves students' academic performance. This stu… more
Date: May 1993
Creator: Mangrum, C. W. (Clifton William)
Item Type: Refine your search to only Thesis or Dissertation
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The Effects of Locus of Control and Soluble Discrimination Problems on Intelligence Test Performance

Description: This study investigated the possible differential effects of a series of soluble discrimination problems on internal versus external locus of control subjects. It was hypothesized that externals exposed to a series of discrimination problems would perform better on a test task than external controls, while internals exposed to the same problems would not perform better on the test task relative to their controls. As anticipated, the internals were not affected by the discrimination problems. Ho… more
Date: December 1976
Creator: Smith, Alvin, active 1976-
Item Type: Refine your search to only Thesis or Dissertation
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The Effects of Long Term Moderate Ethanol Intake on the Immune Response in Rats

Description: Using a rat model, the effects of a single dose or six to twelve months of daily oral administration of ethanol on the immune system were determined. The rats were challenged with sheep red blood cells after the various dosing periods to elicit an immune response. Immune system responsiveness was determined by means of white blood cell counts and differentials, antibody titers, and T-cell numbers. No deleterious effects of the ethanol on the immune response were seen, while the female alcohol-f… more
Date: August 1991
Creator: Follin, Cynthia A. (Cynthia Ann)
Item Type: Refine your search to only Thesis or Dissertation
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Effects of Long-Term Moderate Ethanol Intake on the Stress Response in Rats

Description: The effect of ethanol on the stress response in rats was examined. Experimental animals were given 0.25 ml of 28 percent ethanol or 0.25 ml of water orally once a day, five days a week, for a period of twelve months and were then subjected to fifteen minute cold stress. Corticosterone levels in ethanol-treated males following stress were significantly lower (22 percent) than in the sham group. Adrenal weights in sham-treated females were significantly higher (15 percent) than in the ethanol gro… more
Date: December 1984
Creator: Williams, Judy L. (Judy Lee)
Item Type: Refine your search to only Thesis or Dissertation
open access

The Effects of Long Term Modernate Ethanol Intake on Plasma Levels of ACTH, Beta Endorphin, and Corticosterone in Rats

Description: The effects of single injections and daily oral administration of ethanol on plasma levels of ACTH, beta endorphin, and corticosterone in response to cold stress were examined. The long-term experimental animals were given 0.25 ml of 28% ethanol or water orally once a day, five days a week, for fourteen months. Plasma levels of ACTH, beta endorphin, and corticosterone were lower in alcohol-treated rats as compared with water-treated rats when exposed to cold stress. The effects of a single inje… more
Date: December 1990
Creator: Breedlove, Kenneth
Item Type: Refine your search to only Thesis or Dissertation
open access

The Effects of Low-Intensity Exercise on Neurocognitive Function

Description: Acute aerobic exercise exerts a small beneficial effect on cognition. Much of the research to date has focused on cognitive changes following a bout of exercise, while little is currently known about changes in cognitive performance during exercise. The limited research that has been conducted suggests either positive, negative, or no effects on cognitive performance during exercise. Thus, the primary purpose of this study was to examine the effects of low-intensity cycling on cognitive functio… more
Date: August 2018
Creator: Cleveland, David
Item Type: Refine your search to only Thesis or Dissertation
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The Effects of Lower Body Negative Pressure on the Cardiovascular System: The Relationships of Gender and Aerobic Fitness

Description: Sixteen males and sixteen females were recruited for this study; eight of each gender were aerobically trained athletes; the remaining eight were untrained control subjects. Each subject performed a maximal exercise stress test for aerobic capacity (VO2max). On a separate day the blood volume and the cardiovascular responses to progressive (0 to -50 torr) lower body negative pressure (LBNP) were determined. The female subjects were observed to be significantly more tolerant of the LBNP than th… more
Date: August 1986
Creator: Hudson, Donna Louise
Item Type: Refine your search to only Thesis or Dissertation
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Effects of Lysolecithin on Macrophages

Description: The effect of lysolecithin on the macrophage was studied using five macrophage function assays. The results of indicate that lyso lecithin is a macrophage activating agent which causes enhanced cell spreading, increased phagocytosis of sheep erythrocytes, heightened membrane activity in the presence of damaged autologous red blood cells, chemotaxis, and vigorous phagocytosis and intracellular killing of Staphylococcus albus.
Date: May 1988
Creator: Swee, Mei Hua
Item Type: Refine your search to only Thesis or Dissertation
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Effects of Macrophyte Functional Diversity on Taxonomic and Functional Diversity and Stability of Tropical Floodplain Fish Assemblages

Description: Multiple dimensions of biodiversity within and across producer and consumer guilds in the food web affect an ecosystem’s functionality and stability. Tropical and subtropical aquatic ecosystems, which are extremely diverse, have received much less attention than terrestrial ecosystems in regards to the effects of biodiversity on ecosystem functioning. We conducted a field experiment that tested for effects of macrophyte functional diversity on diversity and stability of associated fish assembl… more
Date: August 2015
Creator: Treviño, Jessica Marie
Item Type: Refine your search to only Thesis or Dissertation
open access

The Effects of Mainstreaming on the Self-Concept of Physically Handicapped Children

Description: The Piers-Harris Self-Concept Scale for Children, the Florida Key: A Scale to Inter Learner Self-Concept, and the Walker Problem Behavior Identification Checklist were used to assess the self-concepts of 18 ambulatory physically handicapped children between the ages of 6 and 12 years. Data were analysed via one-sample t-tests. The hypothesis that mainstreamed handicapped children would exhibit somewhat lower self-concept than their nonhandicapped peers was not supported. In fact, some mainstrea… more
Date: August 1983
Creator: Walters, Terry L. (Terry Lynne)
Item Type: Refine your search to only Thesis or Dissertation
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Effects of Male and Female Speech Styles on the Perceptions of Clinical Psychologists

Description: Previous research suggests that gender-appropriate and gender-inappropriate use of sex-linked linguistic markers alters subjects' perceptions of the speaker. The present study examined the effects of male and female speech styles on clients' perceptions,. Undergraduates (N = 160) listened to audiotapes of clinical psychologists introducing the same client to psychotherapy. Clinician gender and sex-linked linguistic markers were manipulated. The results suggested that sex-stereotypes of males, f… more
Date: August 1989
Creator: Sager, Beatrice W. (Beatrice Wynne)
Item Type: Refine your search to only Thesis or Dissertation
open access

Effects of Managerial Experience on Assertiveness, Anxiety, and Locus of Control

Description: The purpose of this study was to examine the effects of managerial experience on the relationships between assertiveness, trait anxiety, and internality, and on each of these constructs individually. Hypotheses were as follows: a) managers would be more assertive, internal, and less trait anxious than business students; b) males would be more assertive than females when students, not managers; and c) assertiveness and internality would relate positively to each other and negatively to trait anx… more
Date: December 1983
Creator: Dick, William E.
Item Type: Refine your search to only Thesis or Dissertation

Effects of Managerial Risk Propensity and Risk Perception on Contract Selection: Revisiting the Risk Neutrality Assumption of Transaction Cost Economics (TCE)

Description: Contract selection is at the forefront of risk management and mitigation, yet it is an underrepresented area of research in supply chain management field as well as the influences of individual-level risk propensity and risk perception on supply chain decision-making processes. This dissertation explores effects of managerial risk propensity and risk perception on contract selection through the theoretical lens of Transaction Cost Economics (TCE), using a vignette-based experimental research de… more
Date: August 2020
Creator: Cevikparmak, Sedat
Item Type: Refine your search to only Thesis or Dissertation
open access

Effects of Manifest Anxiety Upon a Measure of Memory Span

Description: This study will attempt to verify the Hullian drive theory, E = f(HxD), as others have done before, but with one exception. The H, or habit strength, will be held to be neutral so that the E, or excitatory potentials, will be a function of drive alone. Without any habit to reinforce, any increase in excitatory potential can be related directly to increase in drive. Four hypotheses were investigated: The first hypothesis was that the HA, or high-anxiety groups, will also be the high-drive groups… more
Date: January 1963
Creator: Winston, Robert M. L.
Item Type: Refine your search to only Thesis or Dissertation
open access

The Effects of Mastery, Competitive and Cooperative Goals on Performance in Simple and Complex Sport Skills

Description: The present study investigated the effects of different goal and feedback conditions on performance of a basketball field goal shooting task and a more complex one-on-one offensive basketball task. Subjects (N = 100) were matched, based on pre-test performance, into one of five conditions: competitive goal, cooperative goal, mastery goal, "do your best" with feedback, and "do your best" without feedback. Results indicated the competitive group was significantly better than the "do your best" wi… more
Date: December 1986
Creator: Giannini, John
Item Type: Refine your search to only Thesis or Dissertation
open access

Effects of Maternal Aerobic Exercise on Selected Pregnancy Outcomes in Nulliparas

Description: This study evaluated the effects of participation in aerobic exercise on pregnancy outcomes. Pregnancy outcomes included type of delivery, length of labor, gestational age, neonatal birth weight, and maternal weight gain. The 137 nulliparas were categorized as active (N=44) or sedentary (N=93) based on self-reported aerobic exercise. Findings from this study suggest that pregnant women who were active during pregnancy were more likely to have vaginal deliveries than sedentary women. No signific… more
Date: August 1997
Creator: Melgar, Dian L. (Dian Louise)
Item Type: Refine your search to only Thesis or Dissertation
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The Effects of Maternal Employment and Family Life Cycle Stage on Women's Psychological Well-Being

Description: The study examined the impact of maternal employment and family life cycle stage on the psychological well-being o£ middle socioeconomic status women. One hundred twenty eight mothers of children at the stages of birth to 6 years, 7 to 12 years and 13 to 17 years, completed a self-report questionnaire. To test the hypothesis of the study, a 3 X 3 (employment X family life cycle stage) analysis of covariance was conducted with age, income, time employed and psychological resources as covariates.… more
Date: August 1984
Creator: Marcus, Suzanne
Item Type: Refine your search to only Thesis or Dissertation
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The Effects of Maternal Employment Status on the Evening Meals of Adolescents

Description: The purpose of this study was to determine whether maternal employment contributed to the general inadequacy of the adolescent's evening meal, and to examine the attitudes of adolescents regarding the mother's role in evening meal preparation. A questionnaire was administered to 1180 high school students in a suburban area of Dallas-Ft.Worth in May, 1987. The hypotheses were tested using Chi square, Pearson product moment correlation, and Anova. Results indicated that maternal employment affect… more
Date: August 1987
Creator: Hebert, Karen A. Fleischman (Karen Ann Fleischman)
Item Type: Refine your search to only Thesis or Dissertation
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Effects of Meal Size and Type, and Level of Physical Activity on Perceived Masculinity, Femininity, Likability and Attractiveness

Description: Previous research indicates that women are judged on the amount of food eaten and that both men and women are judged on the type of food eaten. This study is an attempt to determine whether meal size or type predominantly accounts for these findings on the variables of masculinity, femininity, attractiveness, thinness, fitness, and likability. Physical activity was also included to determine its effect on these variable. Subjects used were 313 undergraduate students. Results indicate that meal … more
Date: December 1994
Creator: Hill, Christie D.
Item Type: Refine your search to only Thesis or Dissertation
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