Degree Level

David Lefkowitz of Dallas: A Rabbi for all Seasons (open access)

David Lefkowitz of Dallas: A Rabbi for all Seasons

This dissertation discusses the impact David Lefkowitz and his ministry had on Dallas during the years of his ministry (1920-1949) at Temple Emanu-El in Dallas Texas, and the years following his death in 1955. The focus is on his involvement in civic activities, although his pastoral activities are also discussed. Sources include interviews with family members, friends and acquaintances, newspaper articles, journals, internet sources, unpublished theses and dissertations about Dallas and related subjects, minutes of the Temple's Board of Directors' meetings, minutes of the Central Conference of American Rabbis, minutes of the Board of Directors' Meetings of the Dallas Jewish Welfare Federation, the Temple Emanu-El Bulletins, and selected sermons, speeches and letters of David Lefkowitz. David Lefkowitz was an important figure in the history of Dallas. He taught, by precept and example, that Jews could participate fully in the civic life of Dallas. Because of his teachings, Jews made a positive difference in the development of Dallas. He has left a lasting impression on Dallas, and through his ministry and hard work, he made Dallas a better place for all its citizens.
Date: August 2000
Creator: Guzman, Jane Bock
System: The UNT Digital Library
The Effects of Media Exposure on Body Satisfaction, Beliefs About Attractiveness, Mood and Bulimic Symptomatology Among College Women (open access)

The Effects of Media Exposure on Body Satisfaction, Beliefs About Attractiveness, Mood and Bulimic Symptomatology Among College Women

The research of Stice et al. (1994) and Stice and Shaw (1994) proposed several mechanisms that may mediate the adverse effects of media exposure to the thin ideal including internalization of the thin-ideal, negative affect, and body dissatisfaction. The purpose of this study was to extend initial research of Stice and Shaw (1994) by incorporating two forms of media (e.g., TV and Magazines) to assess the effects of exposure to the media portrayal of ideal body shape on women's mood, body satisfaction, and internalization of societal values concerning attractiveness. The relation of these variables to bulimic symptomatology was examined. The current study improved upon Stice and Shaw's study (1994) by matching participants' scores on BMI, level of negative affect, and level of body satisfaction before random assignment to the experimental conditions. Female undergraduates aged 18 to 25 years participated in premeasure (N = 198) and post measure (N = 164) conditions. Results from repeated mulitvariate analysis indicated media exposure to ideal-body images demonstrated no significant changes in women's affect, body satisfaction or endorsement of the thin ideal. Indirect support for the sociocultural theory of eating disorders was provided by multiple regression analyses that demonstrated lower levels of satisfaction with size …
Date: December 2000
Creator: Varnado, Jessica Lea
System: The UNT Digital Library
Themes of Exodus and Revolution in Ellison's Invisible Man, Morrison's Beloved, and Doctorow's Ragtime (open access)

Themes of Exodus and Revolution in Ellison's Invisible Man, Morrison's Beloved, and Doctorow's Ragtime

In my dissertation I examine the steps in and performance of revolution through the writings of three Postmodern authors, Ralph Ellison, Toni Morrison, and E. L. Doctorow, in light of the model of the biblical Exodus journey and the revolution which precipitated that movement. I suggest that the revolution which began with the Israelites' bondage in Egypt has provided the foundation for American literature. I show that Invisible Man, Beloved, and Ragtime not only employ the motif of the Exodus journey; they also perpetuate the silent revolution begun by the Israelites while held captive in Egypt. This dissertation consists of six chapters. Chapter One provides the introduction to the project. Chapter Two provides the model for this study by defining the characteristics of the Exodus journey, Moses as the leader of the Israelites, and the pattern of revolution established by Michael Walzer in Exodus and Revolution. In Chapters Three, Four, and Five, I apply the model established in Chapter Two to the individual texts. In Chapter Six, I draw three conclusions which arise from my study. My first conclusion is that the master story of the Exodus journey and the Israelites' liberation from Egypt informs all Western literaturewhether the literature …
Date: December 2000
Creator: Turner, Tracy Peterson
System: The UNT Digital Library
Public School Educators' Use of Computer-Mediated Communication (open access)

Public School Educators' Use of Computer-Mediated Communication

This study examined the uses of computer-mediated communication (CMC) by educators in selected public schools. It used Rogers' Diffusion of Innovation Theory as the underpinnings of the study. CMC refers to any exchange of information that involves the use of computers for communication between individuals or individuals and a machine. This study was an exploration of difficulties users confront, what services they access, and the tasks they accomplish when using CMC. It investigated the factors that affect the use of CMC. The sample population was drawn from registered users on TENET, the Texas Education Network as of December 1997. The educators were described with frequency and percentages analyzing the demographic data. For the research, eight indices were selected to test how strongly these user and environmental attributes were associated with the use of CMC. These variables were (1) education, (2) position, (3) place of employment, (4) geographic location, (5) district size, (6) organization vitality, (7) adopter resources, and (8) instrumentality Two dependent variables were used to test for usage: (1) depth or frequency of CMC usage and amount of time spent online and (2) breadth or variety of Internet utilities used. Additionally, the users' perception of network benefits was measured. …
Date: December 2000
Creator: Urias-Barker, Zelina
System: The UNT Digital Library
Effects of Self-Monitoring and Monetary Reward on Fluid Adherence among Adult Hemodialysis Patients (open access)

Effects of Self-Monitoring and Monetary Reward on Fluid Adherence among Adult Hemodialysis Patients

The effects of a monetary reward and self-monitoring on reducing interdialytic weight gain (IWG) were compared for 6 hemodialysis patients in an outpatient setting. A single-subject experimental design (A-B-BC-B-BC) was used to examine each variable individually and in combination, with alternating phases to control for possible sequencing effects. Monetary reward (50 cents - $3) was administered in a titrated manner according to standardized criteria, ranging from 3 % and 4% of patients' dry weight on weekdays and weekends, respectively, to 3.5% and 4.5% for weekdays and weekends. Self-monitoring involved recording daily fluid and diet intake. Results indicated that by the end of the treatment program, the 6 participants averaged a 14% reduction in weekday IWG and a 15.45% reduction in weekend IWG; however, due to significant variability, it cannot be concluded that the reductions are treatment effects. Four out of 6 participants reduced their average IWG for both weekends and weekdays by .75 kg (1.65 lb.). The average weekend reduction for these 4 participants was .85 kg (1.87 lbs.) while the average weekday reduction was .65 kg (1.43 lb.). All 6 participants showed reductions in weekday IWG that averaged .53 kg (1.17 lb.). However, only 2 participants demonstrated IWG reductions …
Date: December 2000
Creator: Sonnier, Bridget L.
System: The UNT Digital Library
Head Trauma Release of Histamine from Dural Mast Cells Alters Blood-Brain Barrier: Attenuation with Zolantidine (open access)

Head Trauma Release of Histamine from Dural Mast Cells Alters Blood-Brain Barrier: Attenuation with Zolantidine

This study employed a new model of mild-to-moderate head trauma to specifically identify the role of dural mast cell (MC) histamine in trauma-induced increased permeability in the blood-brain barrier (BBB). A single line was scored partially through the left dorsal parietal skull. Immediately following the trauma, degranulation was seen in 39% of the MCs on the left and in 2% on the right. After a 20 min survival period, left duras showed 55% with MC degranulation (fewer with complete degranulation) compared to 34% on the right. In the other experiments two parallel lines were scored following the injection of Evan's blue. Histamine assay showed histamine increased in the left cortex to 154% at 5 min, 174% at 10 min, and 151% at 20 min. Fluorescent quantitation of extravasated Evan's blue at 20 min following the trauma gave an increase of 1385% over the value measured for the right cortex. Zolantidine, a selective histamine H2 receptor antagonist, administered at 10- and 20- mg/kg 30 min before the trauma blocked 65% of the Evan's blue extravasation compared with the control and 2.5 mg group.
Date: December 2000
Creator: Laufer, Susan R.
System: The UNT Digital Library
Intentions and Implementation of the Professional Development and Appraisal System in Texas (open access)

Intentions and Implementation of the Professional Development and Appraisal System in Texas

The purpose of this study was to describe the intentions of the designers of the Professional Development and Appraisal System (PDAS) in Texas and the perceptions of teachers regarding its implementation. Information for the study was gathered in two phases using two methodologies. The first was a semi-structured interview with four expert informants instrumental in the design and implementation of the PDAS at the state level. The second component of the study was conducted with teachers using a 37-item Likert survey. The population for this phase of the study was 150 elementary and 150 secondary teachers chosen randomly from three school districts in North Central Texas. The districts were selected to represent a variety of sizes in regard to student population and represent diverse student population characteristics and socioeconomic levels. Data from the semi-structured interviews and the returned surveys were analyzed to determine the designers' intentions and areas of emphasis and to describe the alignment the teachers' perceptions and the designers' intentions. Quantitative data gathered from the surveys were analyzed using descriptive statistics as well as a correlation and function analysis and analysis based on a Cronbach alpha coefficient. The analysis of data revealed the following: 1. Teachers perceived that …
Date: December 2000
Creator: Davis-Frost, Diane
System: The UNT Digital Library
Evaluation of a Master of Divinity Program in a Theological Seminary (open access)

Evaluation of a Master of Divinity Program in a Theological Seminary

The objective of this research project was to evaluate the effectiveness of the M.Div. program of Alliance Bible Seminary, Hong Kong. The research was designed for evaluation based solely upon the perceptions of the participant (graduate). The research identified and described the graduates enrolled, assessed perceived career development and attainment, and measured the degree of satisfaction experienced by the graduates who have matriculated from the degree program. A questionnaire was mailed to obtain the necessary data from the graduates of the M.Div. program of Alliance Bible Seminary. The questionnaire which was used was adapted from a previously used one used in the study of graduate educational programs. It has been tested in two other previous studies and was deemed effective. In order to verify its effectiveness in the Eastern context, a pilot test was conducted before the formal research, and the adapted questionnaire was found effective. Responses to the questionnaire were coded and the SPSS system was used to analyze the data. Tables and figures were constructed showing frequencies and significant differences where they occurred. Generally, the graduates at Alliance Bible Seminary were very satisfied with their educational experiences. Both males and females indicated that they would choose the same …
Date: December 2000
Creator: Lui, Cheuk-On
System: The UNT Digital Library
The Effects of a Therapeutic Play Intervention on Hispanic Students' Reading Achievement, Self-Concept, and Behavior (open access)

The Effects of a Therapeutic Play Intervention on Hispanic Students' Reading Achievement, Self-Concept, and Behavior

This study employed a pretest/posttest control group design to investigate the achievement of second grade Hispanic students from a predominantly low socio-economic school in a large metropolitan city. The thirty Hispanic students with the lowest scores on the Gates MacGinitie Reading Test were randomly assigned to the experimental group (n =15) or the control group (n=15). The treatment consisted of 16, 30-minute sessions of play intervention--2 times per week for 8 weeks. The providers of play therapy were school personnel trained in the principles of child-centered play therapy including tracking, reflecting feelings, and setting limits. Instruments were administered to all subjects prior to the 8 week treatment period and in the two-week period following treatment and included the GMRT, the Joseph Pre-School Primary Self-Concept Test (JPPSCST) and the Child Behavior Checklist Teacher Report Form (CBCTRF). Statistical analyses included a (t-test; 2 tail; p > .05), discriminant analysis, and cross validation. The results indicated that children who received play therapy did not achieve notably higher mean scores in reading. However, play therapy did improve the experimental group's self-concept scores and their internal behavior scores, though not significantly. All differences between the experimental and the control groups were within 1 point except …
Date: December 2000
Creator: Lopez, Helen Trevino
System: The UNT Digital Library
Teachers' and Students' Perceptions of the Impact of Content Literacy Strategy Instruction on Teaching and Learning (open access)

Teachers' and Students' Perceptions of the Impact of Content Literacy Strategy Instruction on Teaching and Learning

Reading researchers agree that content literacy strategies are beneficial in helping students learn. However, teachers remain resistant to teaching the strategies. Additionally, many students, even at the college level, lack the learning strategies necessary to experience academic success. This study sought to gain a deeper understanding of the complexities of content literacy strategy instruction. The research questions that guided the study addressed the benefits, obstacles, and support and experiences needed to sustain the use of the strategies over time. Multiple data sources were used to investigate teachers' and students' perceptions of the research questions. The main benefit found was increased student understanding and learning of content; additional benefits included increased instructional repertoire, increased student engagement in class, and improved learner independence. Most of the obstacles documented in the literature were supported in the study; however, the obstacle of time was noted most frequently. Teacher confidence was observed by the researcher as an obstacle. The majority of participants indicated they would continue using the strategies learned during the study in the future. Students noted the support needed to sustain content literacy strategy use depended on teachers providing direct instruction, practice using the strategies, and personal success with the strategies. Teachers also …
Date: December 2000
Creator: Maher, Sheila
System: The UNT Digital Library
The medicalization of oral aesthetics: an application of structuration theory (open access)

The medicalization of oral aesthetics: an application of structuration theory

Medicalization has been discussed at length in the sociology of health and illness literature. Typically, dialogue has centered on the effects of medicalization and the process as a phenomenon in professional fields alone. This work is an attempt to study medicalization using a theoretical model, structuration, that allows for inclusion of the larger social system in understanding health system changes and to include consumers of health services in the process as active agents. The example of oral aesthetics provides an opportunity to identify the agents of change, the process of medicalization in the larger social context, and possible indicators of the phenomenon. An attempt to operationalize the complex concept of medicalization marks a move toward creating testable theoretical models for the variety of behaviors and conditions under study as medicalized. Using content analysis of professional dental journals and lay magazines and a review of system rules and resources, shifts in language use and the emergence of medical frameworks were documented to determine if a medicalization of oral aesthetics had occurred. Results show two distinct periods within the last century when oral aesthetics have been medicalized in the United States. Evidence of turn-taking behavior among the agents is noted as well …
Date: December 2000
Creator: Freeland, Lisa New
System: The UNT Digital Library
Happiness Is a By-Product of Function: William Burroughs and the American Pragmatist Tradition (open access)

Happiness Is a By-Product of Function: William Burroughs and the American Pragmatist Tradition

This dissertation examines the techniques and themes of William Burroughs by placing him in the American Pragmatist tradition. Chapter One presents a pragmatic critical approach to literature based on Richard Rorty and John Dewey, focusing on the primacy of narration over argumentation, redescription and dialectic, the importance of texts as experiences, the end-products of textual experiences, and the role of critic as guide to experience rather than judge. Chapter Two uses this pragmatic critical lens to focus on the writing techniques of William Burroughs as a part of the American Pragmatist tradition, with most of the focus on his controversial cut-up technique. Burroughs is a writer who upsets many of the traditional expectations of the literary writing community, just as Rorty challenges the conventions of the philosophical discourse community. Chapter Three places Burroughs within a liberal democratic tradition with respect to Rorty and John Stuart Mill. Burroughs is a champion of individual liberty; this chapter shows how Burroughs' works are meant to edify readers about the social, political, biological, and technological systems which work to control individuals and limit their liberties and understandings. The chapter also shows how Burroughs' works help liberate readers from all control systems, and examines the …
Date: December 2000
Creator: Goeman, James Robert
System: The UNT Digital Library
Performance Measurement, Feedback, and Reward Processes in Research and Development Work Teams: Effects on Perceptions of Performance (open access)

Performance Measurement, Feedback, and Reward Processes in Research and Development Work Teams: Effects on Perceptions of Performance

Organizations have had difficulty managing the performance of their knowledge work teams. Many of these troubles have been linked to antiquated or inadequate performance management systems along with a scarcity of empirical research on this important human resource initiative. These problems are magnified when managing the performance of research and development teams because greater ambiguity and uncertainty exists in these environments, while projects are unique and continually evolving. In addition, performance management in R&D has only recently been accepted as important while individuals in these settings are often resistant to teams. This study represented the first step in the process of understanding relationships between performance management practices and perceptions of performance in R&D work teams. Participants were 132 R&D team leaders representing 20 organizations that agreed to complete a survey via the Internet. The survey instrument was designed to examine the relationships between performance measurement, feedback, and reward processes utilized by teams in relation to measures of customer satisfaction, psychological and team effectiveness, and resource utilization and development. The most important level of performance measurement occurred at the business unit level followed next by the individual level while team level measurement was unrelated to team performance. A simple measurement system …
Date: December 2000
Creator: Roberts, M. Koy
System: The UNT Digital Library
Relevance Thresholds: A Conjunctive/Disjunctive Model of End-User Cognition as an Evaluative Process (open access)

Relevance Thresholds: A Conjunctive/Disjunctive Model of End-User Cognition as an Evaluative Process

This investigation identifies end-user cognitive heuristics that facilitate judgment and evaluation during information retrieval (IR) system interactions. The study extends previous research surrounding relevance as a key construct for representing the value end-users ascribe to items retrieved from IR systems and the perceived effectiveness of such systems. The Lens Model of user cognition serves as the foundation for design and interpretation of the study; earlier research in problem solving, decision making, and attitude formation also contribute to the model and analysis. A self reporting instrument collected evaluative responses from 32 end-users related to 1432 retrieved items in relation to five characteristics of each item: topical, pertinence, utility, systematic, and motivational levels of relevance. The nominal nature of the data collected led to non-parametric statistical analyses that indicated that end-user evaluation of retrieved items to resolve an information problem at hand is most likely a multi-stage process. That process appears to be a cognitive progression from topic to meaning (pertinence) to functionality (use). Each step in end-user evaluative processing engages a cognitive hierarchy of heuristics that includes consideration (of appropriate cues), differentiation (the positive or negative aspects of those cues considered), and aggregation (the combination of differentiated cue aspects needed to …
Date: December 2000
Creator: Greisdorf, Howard F.
System: The UNT Digital Library
The Effect of Leadership Training on Manufacturing Productivity of Informal Leaders (open access)

The Effect of Leadership Training on Manufacturing Productivity of Informal Leaders

The purpose of this study was to determine if leadership training, given to informal leaders, had a positive effect on manufacturing productivity. The leadership attributes of informal leaders were assessed using the Leader Attributes Inventory (LAI). Furthermore, the performance of informal leaders was measured using the Leader Effectiveness Index (LEI). Non-management employees from various departments in a manufacturing facility were placed in one of four experimental groups. A Solomon four-group experimental design was employed. A one-group pretest-posttest design was used to control threats to internal validity. The one-way analysis of variance procedure (ANOVA) was used to determine if there were statistically significant increases in manufacturing productivity of informal leaders. Findings suggested that training increased the manufacturing productivity of informal leaders. The increased productivity indicated that leadership training could help manufacturing facilities increase their productivity without capital expenditures. Findings did not indicate a statistically significant difference in leadership attributes. Findings also suggested there were no significant differences in the manufacturing productivity between employees with high leader attributes and low leader attributes. Based on this study, leadership training, given to non-management employees, may yield gains in manufacturing productivity.
Date: December 2000
Creator: Knox, Donald W.
System: The UNT Digital Library
A Confirmatory Factor Analysis of WRAML Scores in a Group of Academically Talented Students (open access)

A Confirmatory Factor Analysis of WRAML Scores in a Group of Academically Talented Students

The purpose of this study was to confirm the original factor structure of the Wide Range Assessment of Memory and Learning (WRAML) utilizing a non-clinical adolescent population. Additional analysis examined the relationship between SAT-M scores and spatial relations ability. Exploratory analyses were conducted to determine ethnic and gender differences on the WRAML and subtests from the DAT. Sixty-four academically talented adolescents completed the WRAML and the mechanical reasoning and spatial relations subtests from the Differential Aptitude Test (DAT). The confirmatory factor analysis found the data obtained to not be a good fit for the factor structure of the WRAML (Sheslow & Adams, 1990). Additional confirmatory analyses were conducted which examined data fit of a three factor model found by reanalyzing the standardization data (Burton et al., 1996; Wasserman & Cambias, 1991) as well as two null models. The data failed to fit any of these three models. No support was found for the second hypothesis that predicted a positive relationship between SAT-M scores and spatial relations ability. Ethnic and gender differences on the WRAML and two DAT subtests were examined and discussed. Limitations of this study were reviewed which may have accounted for the overall lack of results.
Date: December 2000
Creator: Johnson, Patricia R.
System: The UNT Digital Library
Retention and Attrition of Doctoral Candidates in Higher Education (open access)

Retention and Attrition of Doctoral Candidates in Higher Education

A number of studies have been conducted on the attrition rates of undergraduate and graduate students. However, the body of knowledge concerning attrition for doctoral students, especially those who have attained the level of “all but dissertation” (ABD), is limited. The purpose of this research was to examine retention and attrition factors of doctoral candidates from a typical Higher Education Doctoral Program (Research II Public Institution) who were admitted to candidacy from 1991 through July 2000. Participation of the subject population was limited to those who had attained the level of ABD--those who had previously fulfilled the residency, coursework, foreign language or tool-subject requirements, and successfully completed the comprehensive/qualifying exams. This population included current ABDs, previously attrited ABDs, and graduates of the degree program. The research study was qualitative and intended to identify the effect of specific, predetermined factors that may have influenced or affected the progress of current, previous, and graduated students towards the doctoral degree in higher education. This study obtained responses to questions from the questionnaire/survey instrument concerning factors that affected program completion or attrition. Students had the opportunity to elaborate on factors from their dissertation, advisement, and personal, financial, and employment experiences that affected their ability …
Date: December 2000
Creator: Malmberg, Eric D.
System: The UNT Digital Library
The Developmental Stages of Concern of Teachers Toward the Implementation of the Information Technology Curriculum in Kuwait (open access)

The Developmental Stages of Concern of Teachers Toward the Implementation of the Information Technology Curriculum in Kuwait

Change is best carried out by individual teachers, and, thus, identifying and resolving teachers’ concerns about an innovation is imperative in guiding the change process to a successful point of implementation. The purpose of this study was to identify concerns that teachers experienced when implementing the Information Technology curriculum in all intermediate schools in Kuwait and to examine the relationships among teachers’ reported stages of concern and other factors, such as gender and experience. The stages of concern, one dimension of the Concerns-Based Adoption Model (CBAM), was applied to reveal teachers’ concerns. The Stages of Concern Questionnaire (SoCQ) and a demographic survey were completed by 248 respondents. The SoCQ measures seven stages of concern that reflect three dimensions: self (awareness, informational, and personal); task (management); and impact (consequence, collaboration, and refocusing Group profile analysis revealed that teachers had four high concerns related to collaboration, personal, refocusing, and informational stages. Teachers also reported low concerns at the management and awareness stages. Both females and males reported collaboration as their greater concern. Teachers with more years of experience reported higher impact concerns. The analysis of individuals’ peak concerns revealed that the majority of the respondents were adopters of the innovation. The analysis …
Date: August 2000
Creator: Alshammari, Bandar S.
System: The UNT Digital Library
Economic Development, Social Dislocation and Political Turmoil in Sub-Saharan Africa: A Pooled Time-Series Analysis and a Test of Causality (open access)

Economic Development, Social Dislocation and Political Turmoil in Sub-Saharan Africa: A Pooled Time-Series Analysis and a Test of Causality

This study focuses on economic development and political turmoil in post-independence Sub-Saharan Africa. There has been a resurgence of interest in the region following the end of the Cold War. In 1997 U.S. president Bill Clinton took a 12-day tour of the region. In 1999 the U.S. Congress (106th Congress) passed the Growth and Opportunity Act and the Hope for Africa Act, designed to encourage political stability and economic development in the region. Although most Sub-Saharan African countries attained independence from colonial rule in the 1960s, more than 30 years of self-government have brought little economic development and political stability to the region. This study attempts to analyze, theoretically and empirically, the relationship among economic development, social dislocation and political turmoil. Social dislocation, as defined in this study, means "urbanization," and it is used as an exogenous variable to model and test the hypothesized causal relationship between economic development and political turmoil. This study employs pooled cross-sectional time-series and seemingly unrelated regression analyses, as well as Granger-causality, to examine the hypothesized relationships and causality in 24 Sub-Saharan African countries from 1971 to 1995. The results confirm the classical economic development theory's argument that an increase in economic development leads to …
Date: December 2000
Creator: Obi, Zion Ikechukwu
System: The UNT Digital Library
Parenting Stress: A Comparison of Mothers and Fathers of Disabled and Non-Disabled Children (open access)

Parenting Stress: A Comparison of Mothers and Fathers of Disabled and Non-Disabled Children

This study compared perceived levels of parenting stress between mothers and fathers of children with Attention-Deficit Hyperactivity Disorder (ADHD), children with developmental disabilities, and normally developing children. The relationship of certain demographic variables, such as Socio-economic Status (SES), number of children, years married, parent age, and child age, as well as social support with parenting stress was also examined for mothers and fathers of these three groups. Identification of factors related to parenting stress in fathers was of particular importance for this study, as fathers are often an underrepresented group within parenting research. Identifying effective methods for predicting high levels of parenting stress is important, as stress has been linked to psychological well-being, potential for abuse, and a greater likelihood of poor adjustment for both parent and child. Results from the present study comparing reported stress levels between groups of parents were supportive of previous studies indicating that parents of children with ADHD and developmentally disabilities experience significantly greater parenting stress, specifically with respect to child characteristics. Significant gender differences were also found between mothers and fathers in terms of parent characteristics related to stress. Fathers reported greater stress in the areas of attachment, while mothers reported more parent role …
Date: December 2000
Creator: Walker, Alexis Philbin
System: The UNT Digital Library
An Evaluation of Student Learning and Engagement in a Technology-Enhanced Algebra Unit on Slope (open access)

An Evaluation of Student Learning and Engagement in a Technology-Enhanced Algebra Unit on Slope

The purpose of this study was to examine the effectiveness of a technology-enhanced unit on slope in algebra. The technology used in the study was the Topological Panorama Camera (Topocam). The research questions explored the learning and transfer of knowledge about slope and the engagement level of students during Topocam learning activities. The Topocam is a computer-controlled camera that moves on a modular track while it scans a scene through a vertical slit. Students can program the speed of the camera and frequency of pictures. They then witness the results of time and motion in the image created by the camera. Data for this study were collected from a pretest/posttest, as well as from observations of indicators of engaged learning. The research population consisted of 46 students from three classes of Algebra I students. Three classroom teachers each taught a unit on slope, while a fourth teacher conducted the activities with the Topocam for all the classes. The classroom activities focused on the concept of slope as a rate of change utilizing coordinate grids. The Topocam activities involved students in collaboratively making and testing predictions about slope. The findings of the study indicate that student learning did occur with this …
Date: August 2000
Creator: Beck, Elaine K.
System: The UNT Digital Library
Energy Distribution of Sputtered Neutral Atoms from a Multilayer Target (open access)

Energy Distribution of Sputtered Neutral Atoms from a Multilayer Target

Energy distribution measurements of sputtered neutral particles contribute to the general knowledge of sputtering, a common technique for surface analysis. In this work emphasis was placed on the measurement of energy distribution of sputtered neutral atoms from different depths. The liquid Ga-In eutectic alloy as a sample target for this study was ideal due to an extreme concentration ratio gradient between the top two monolayers. In pursuing this study, the method of sputter-initiated resonance ionization spectroscopy (SIRIS) was utilized. SIRIS employs a pulsed ion beam to initiate sputtering and tunable dye lasers for resonance ionization. Observation of the energy distribution was achieved with a position-sensitive detector. The principle behind the detector's energy resolution is time of flight (TOF) spectroscopy. For this specific detector, programmed time intervals between the sputtering pulse at the target and the ionizing laser pulse provided information leading to the energy distribution of the secondary neutral particles. This experiment contributes data for energy distributions of sputtered neutral particles to the experimental database, required by theoretical models and computer simulations for the sputtering phenomenon.
Date: August 2000
Creator: Bigelow, Alan W.
System: The UNT Digital Library
The Nature of the Impact of a Reading Tutoring Program on Participating Students in the Classroom: A Qualitative Study (open access)

The Nature of the Impact of a Reading Tutoring Program on Participating Students in the Classroom: A Qualitative Study

The purpose of this qualitative multi-case study was to explore the nature of the impact that a tutoring program, which featured preservice teachers as tutors, had on participating fifth grade at-risk students’ literacy behaviors in the classroom.The researcher served in the role of passive participant observer during the scheduled language arts period three days per week in the participating students’ classroom for a period of twenty-three weeks. Field notes were made in the classroom and coded, and audio tapes were recorded and transcribed of the tutoring sessions. Formal and informal interviews with the teacher, tutors, and participating students were conducted, transcribed, and coded. Lesson plans and reflections developed and written by the tutors were gathered and coded. Observations indicated that there were four types of reading required on a daily basis in the classroom. Assigned readings made by the teacher included narrative and expository texts. Pleasure readings were materials chosen by the students, but at certain times were teacher initiated and at other times, student initiated. The four types of reading found in the classroom were mirrored by the tutoring sessions. Students observed in the classroom could be divided into two types and four categories. Those with positive attitudes were …
Date: August 2000
Creator: Arrowood, Dana R.
System: The UNT Digital Library
Attitudes of American School Counselor Association Members toward Utilizing Paraprofessionals in School Counseling (open access)

Attitudes of American School Counselor Association Members toward Utilizing Paraprofessionals in School Counseling

The principal investigator (PI) for this study surveyed 207 American School Counselor Association (ASCA) members on their attitudes toward utilizing trained counseling paraprofessionals in school counseling. The PI also examined the relationship between participants’ attitudes and their subjective reports of the counselor-student ratios in their schools, the amount of work time they spent providing direct counseling services to students, and the extent to which their districts experienced a school counselor shortage. The participants’ mean reported counselor-student ratio (1:464.63) significantly exceeded ASCA recommendations of 1:250. Elementary counselors reported the highest counselor-student ratios while high school counselors reported the lowest. Furthermore the PI found a significant linear trend for counselor-student ratios to decrease as school level increased. The participants’ reported mean percentage of time involved in direct counseling services (61.48%) fell significantly below the ASCA recommended 70%. Elementary counselors reported the highest amount of time involved in direct counseling services while high school counselors reported the lowest. The PI also found a significant linear trend for percentages of time involved in direct services to decrease as school level increased. Over one-fourth of the participants indicated school counselor shortages existed in their districts. A majority of participants supported utilizing counseling paraprofessionals in their …
Date: August 2000
Creator: Astramovich, Randall L.
System: The UNT Digital Library