States

Development of a Coaxiality Indicator

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The geometric dimensioning and tolerancing concept of coaxiality is often required by design engineers for balance of rotating parts and precision mating parts. In current practice, it is difficult for manufacturers to measure coaxiality quickly and inexpensively. This study examines feasibility of a manually-operated, mechanical device combined with formulae to indicate coaxiality of a test specimen. The author designs, fabricates, and tests the system for measuring coaxiality of holes machined in a steel test piece. Gage Repeatability and Reproducibility (gage R&R) and univariate analysis of variance is performed in accordance with Measurement System Analysis published by AIAG. Results indicate significant design flaws exist in the current configuration of the device; observed values vary greatly with operator technique. Suggestions for device improvements conclude the research.
Date: December 1999
Creator: Arendsee, Wayne C.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

A Descriptive Study of Students Who Were Accepted for Admission at West Texas A&M University But Did Not Enroll

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Each year, institutions of higher education devote valuable financial and personnel resources in the hope of enhancing student recruitment and matriculation. The purpose of this study was to examine the demographic characteristics, the factors that influenced students’ decisions to apply for admission to a university, their educational intentions, and their reasons for not enrolling after they had been admitted. The subjects of the study were first-time freshmen accepted for admission to a mid-size, public, southwestern university who did not enroll for the fall 1997 semester. Statistically significant differences were found when comparing no-shows and enrolled students by gender, ethnicity, age, ACT/SAT score, and distance of their hometown from the university. There were more female no-shows, and more males enrolled than females; a greater percentage of no-shows reported the distance of their hometown to be more than 200 miles; and the mean test score for no-shows was higher. Factors important in the college selection process found to be statistically significant among the groups were: a greater percentage of Minorities than Caucasians reported the importance of the financial aid award or a scholarship offer; students living within 100 miles of the campus reported the proximity of the university as important, advice received …
Date: December 1999
Creator: Barton, Mary Edna
Object Type: Thesis or Dissertation
System: The UNT Digital Library

The Effect of Increased Collaboration Among the Library Media Specialist and School Personnel on Perceptions of the Roles and Responsibilities of the Library Media Specialist

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This study measured and explored changes in perceptions of the roles and responsibilities of the library media specialist when the level of collaboration increased. Seven library media specialists targeted four members of their educational communities with whom to increase collaborative activities. Before and after the collaboration began, the library media specialists, the teachers with whom they chose to collaborate, other members from the same educational community, and a control group that did not participate in increased collaboration were given a roles and responsibilities rank-order form. This form was used to measure changes in perceptions regarding the importance of the three roles and selected responsibilities related to the three roles before and after the collaborative experience. The library media specialists and the targeted teachers also kept reflection logs to record factors that enhanced collaboration, factors that inhibited collaboration, and any changes in their teaching style as a result of the collaborative experience. Results indicate that the participating library media specialists themselves experienced the most change. Role identification remains a problem as library media specialists seek to become teaching partners with classroom teachers yet still must keep the library media center aligned with school and district goals and move toward making it …
Date: August 1999
Creator: Beaird, Marilyn Miller
Object Type: Thesis or Dissertation
System: The UNT Digital Library

The Effects of Task-Based Documentation Versus Online Help Menu Documentation on the Acceptance of Information Technology

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The objectives of this study were (1) to identify and describe task-based documentation; (2) to identify and describe any purported changes in users attitudes when IT migration was preceded by task-based documentation; (3) to suggest implications of task-based documentation on users attitude toward IT acceptance. Questionnaires were given to 150 university students. Of these, all 150 students participated in this study. The study determined the following: (1) if favorable pre-implementation attitudes toward a new e-mail system increase, as a result of training, if users expect it to be easy to learn and use; (2) if user acceptance of an e-mail program increase as expected perceived usefulness increase as delineated by task-based documentation; (3) if task-based documentation is more effective than standard help menus while learning a new application program; and (4) if training that requires active student participation increase the acceptance of a new e-mail system. The following conclusions were reached: (1) Positive pre-implementation attitudes toward a new e-mail system are not affected by training even if the users expect it to be easy to learn and use. (2) User acceptance of an e-mail program does not increase as perceived usefulness increase when aided by task-based documentation. (3) Task-based documentation …
Date: May 1999
Creator: Bell, Thomas
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Cure Kinetics and Processing Parameters of Neat and Reinforced High Performance Epoxy Resins: Evaluation of Techniques

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Kinetic equation parameters for the curing reaction of a commercial glass fiber reinforced high performance epoxy prepreg composed of the tetrafunctional epoxy tetraglycidyl 4,4-diaminodiphenyl methane (TGDDM), the tetrafunctional amine curing agent 4,4’-diaminodiphenylsulfone (DDS) and an ionic initiator/accelerator, are determined by various thermal analysis techniques and the results compared. The reaction is monitored by heat generated determined by differential scanning calorimetry (DSC). The changes in physical properties indicating increasing conversion are followed by shifts in glass transition temperature determined by DSC and temperature-modulated DSC (TMDSC), thermomechanical (TMA) and dynamic mechanical (DMA) analysis and thermally stimulated depolarization (TSD). Changes in viscosity, also indicative of degree of conversion, are monitored by DMA. Thermal stability as a function of degree of cure is monitored by thermogravimetric analysis (TGA). The parameters of the general kinetic equations, including activation energy and rate constant, are explained and used to compare results of various techniques. The utilities of the kinetic descriptions are demonstrated in the construction of a useful time-temperature-transformation (TTT) diagram for rapid determination of processing parameters in the processing of prepregs. Copyright is held by the author, unless otherwise noted. All rights reserved. Files: Thesis.pdf Special Conditions
Date: December 1999
Creator: Bilyeu, Bryan
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Counselor Effectiveness and Correlations With Select Demographic Variables for Masters Level Counseling Students

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Counselor education programs are charged with the responsibility to train students to be effective counselors. Despite relative consistency in academic and clinical experiences, some students are less effective than others. It was the intent of this research to investigate possible relationships which may exist between students' background and experiences and their levels of demonstrated counselor effectiveness as measured by the Counselor Rating Form - Short Version (CRF-S) and the Supervisor Rated-Counselor Interaction Analysis (SR-CIA). It was hypothesized that counselor effectiveness would be negatively correlated with prior teaching experience and level of religious participation. Data was collected using a demographic survey from masters level counseling students participating in their practicum semester. Counseling tapes from each of the participants were collected towards the end of the semester. These tapes were then rated by doctoral students using the CRF-S and the SR-CIA. The total sample size was 28. Regression analysis was used to investigate the hypotheses. Three models were constructed. The dependent variables used were scores from the CRF-S, the SR-CIA and a third comprised of a normalized composite of CRF-S and SR-CIA termed COMPOSITE. Each model used, as the independent variables, years of teaching experience, and hours of religious participation. Results from …
Date: December 1999
Creator: Calhoun, Kenneth
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Precision Atomic Spectroscopy with an Integrated Electro- Optic Modulator and DBR Diode Laser at 1083nm

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We have explored the use of recently developed high speed integrated electro optic modulators and DBR diode lasers as a tool for precision laser studies of atoms. In particular, we have developed a technique using a high speed modulator as a key element and applied it to the study of the fine structure of the 23P state of atomic helium. This state has been of long standing interest in atomic physics and its study has been the aim of several recent experiments using various precision techniques. We present our method and results, which will describe a new method for determining the fine structure constant, and lead to a precision test of atomic theory.
Date: December 1999
Creator: Castillega, Jaime
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Hospitality Students' Attitudes and Behavioral Intentions toward Learning and Using Computer Technology

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Following Ajzen/Fishbein's 1980 Theory of Reasoned Action, influences of hospitality students' external variables (age, gender, university classification, and work experience) on computer attitudes, and relationships between computer attitudes and intentions to learn and use computers were tested. A sample of 412 hospitality students completed two measurements: Loyd/Gressard's 1984 Computer Attitude Scale, and Behavioral Intentions to Learn and Use Computers. Males and females had positive computer attitudes. Graduates had more positive computer attitudes. No interaction effect existed between gender and classification. No relationships existed between age and work experience on computer attitudes. Computer attitudes positively correlated with intentions to learn and use computers. Results supported the Theory of Reasoned Action. External variables partially influence attitudes and attitudes influence intentions.
Date: December 1999
Creator: Chuvessiriporn, Suttichai
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Exploration of Sculpture

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The images that I sculpt deal with reflections of human traits. Wood lends itself to this endeavor, offering minimal resistance to manipulation. Keeping the origin and qualities of the material while manipulating it into another object is a statement within itself. Letting the wood do what it does naturally keeps the viewer in touch with the fact it is still just an object of nature. Wood does not make itself any less real because of the relationship of the sculpture to it as wood.
Date: December 1999
Creator: Coldewey, Charles
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Empowerment: The Paradigm for Success for the Nursing Homes of the 21st Century

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For a workplace to be successful, it needs to have a higher morale, thus leading to higher quality of care for residents. For a workplace to be successful in empowerment, it must have developed strong teams, and everyone must work as a team and respect one another. The research for this paper focused on many issues. The most important part of my research came from a study of the nursing assistants at Jennings Hall (JH) in Garfield, Ohio. From the data received, I concluded that the two biggest problems in many nursing homes are lack of respect and lack of team-centered attitude.
Date: December 1999
Creator: Connorton, Margaret L.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Comparative Mitochondrial DNA Sequence Diversity in Isolated and Open Populations of Southern Flying Squirrels

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Three populations of Southern flying squirrels were studied in the Ouachita Mountains of Arkansas to assess the impact of population subdivision-due to island formation--on the population genetics of Glaucomys volans. One island, one mainland, and one open population were investigated. A 367 nucleotide hypervariable region of mitochondrial DNA was sequenced in individuals from each population. Individuals and populations were compared to assess relatedness. Higher sequence diversity was detected in the open and island populations. One island individual shared characters with both the island and mainland populations. Results support the hypothesis that the mainland population may have reduced gene flow. Also, the island population may have been originally founded by at least two maternal lineages.
Date: August 1999
Creator: Cook, Melaney Birdsong
Object Type: Thesis or Dissertation
System: The UNT Digital Library

A Multimedia Atlas of Dissection for Comparative Anatomy of the Vertebrates

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Traditional methods of teaching the laboratory course for Comparative Anatomy of the Vertebrates could be improved by applying current computer technology to construct an interactive, multimedial atlas of dissection. Five specimens used in comparative anatomy courses at most institutions were chosen as representative members of the Phylum Chordata: amphioxus, lamprey, dogfish shark, mud puppy, and cat. Specimens were dissected according to the modified method of Wischnitzer, 1993, and each stage was photographed with a Kodak DC120 digital zoom camera. These images were processed on a Power Macintosh 7600 computer with Adobe Photoshop v. 5.0. The atlas was constructed from these images using Macromedia Authorware v. 4.0.3. Each image contains a series of interactive objects that display a highlight and descriptive text as the cursor passes over each object.
Date: August 1999
Creator: Curran, Anthony A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

A Multimedia Atlas of Dissection for Comparative Anatomy of the Vertebrates

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This interactive multimedia content is part of a Master's thesis regarding how traditional methods of teaching the laboratory course for Comparative Anatomy of the Vertebrates could be improved by applying current computer technology to construct an interactive, multimedial atlas of dissection. Five specimens used in comparative anatomy courses at most institutions were chosen as representative members of the Phylum Chordata: amphioxus, lamprey, dogfish shark, mud puppy, and cat. Specimens were dissected according to the modified method of Wischnitzer, 1993, and each stage was photographed with a Kodak DC120 digital zoom camera. These images were processed on a Power Macintosh 7600 computer with Adobe Photoshop v. 5.0. The atlas was constructed from these images using Macromedia Authorware v. 4.0.3. Each image contains a series of interactive objects that display a highlight and descriptive text as the cursor passes over each object.
Date: August 1999
Creator: Curran, Anthony A., Jr.
Object Type: Interactive Resource
System: The UNT Digital Library

When "The Lie Becomes Truth": Four Historiographic Novels of the Twentieth Century

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This dissertation is an exploration of relationships between fiction and history as illuminated by historiographic fiction in general and the historiographic novel in particular. Here the term historiography is employed particularly in several of its many meanings: as the study of the materials and techniques of history, the study of what it means to be a historian, and the study of the philosophy of history. All of these are comprehended in the larger definition of issues pertaining to the writing of history. Four twentieth-century novels are presented and analyzed as historiographic novels. The common element in analysis of all the novels is the examination of historiographic material encoded in narrative, plot, characters, theme, structure or style. Each analysis focuses on one historiographic assumption or problem and brings in perspectives of historians or theorists of history as well as non-novelistic, critical perspectives of the authors themselves. E. M. Forster's Howards End (1910) is analyzed as an imaginative exposé of causality in historical thinking. All the King's Men by Robert Penn Warren (1946) is presented as a gloss on Isaiah Berlin's critique of Leo Tolstoy's second epilogue to War and Peace. Several essays by philosopher Eric Voegelin provide the theoretical framework for …
Date: December 1999
Creator: Detels, Polly Elizabeth
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Harbor: The Act of Autobiography

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This written thesis accompanies a sixteen-minute documentary video, Harbor, in which the filmmaker explores her relationship with her father who has suffered a stroke. Detailed accounts of the pre-production, production and post-production of the video allow the reader to understand the challenging and rewarding process of making an autobiographical documentary. Theoretical issues are also discussed, including the validity, criticisms, artistic nature and ethical concerns of autobiographical filmmaking. The filmmaker stresses the universality of her story, and how, despite the film's very personal nature, it is applicable for anyone who has dealt with the illness and/or disability of a parent.
Date: August 1999
Creator: Doeren, Catherine Wallace
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Animals-as-Trope in the Selected Fiction of Zora Neale Hurston, Alice Walker, and Toni Morrison

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In this dissertation, I show how 20th century African-American women writers such as Zora Neale Hurston, Alice Walker, and Toni Morrison utilize animals-as-trope in order to illustrate the writers' humanity and literary vision. In the texts that I have selected, I have found that animals-as-trope functions in two important ways: the first function of animal as trope is a pragmatic one, which serves to express the humanity of African Americans; and the second function of animal tropes in African-American women's fiction is relational and expresses these writers' "ethic of caring" that stems from their folk and womanist world view. Found primarily in slave narratives and in domestic fiction of the 19th and early 20th centuries, pragmatic animal metaphors and/or similes provide direct analogies between the treatment of African-Americans and animals. Here, these writers often engage in rhetoric that challenges pro-slavery apologists, who attempted to disprove the humanity of African-Americans by portraying them as animals fit to be enslaved. Animals, therefore, become the metaphor of both the abolitionist and the slavery apologist for all that is not human. The second function of animals-as-trope in the fiction of African-American women writers goes beyond the pragmatic goal of proving African-Americans's common humanity, even …
Date: August 1999
Creator: Erickson, Stacy M.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

The Afro-British Slave Narrative: The Rhetoric of Freedom in the Kairos of Abolition

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The dissertation argues that the development of the British abolition movement was based on the abolitionists' perception that their actions were kairotic; they attempted to shape their own kairos by taking temporal events and reinterpreting them to construct a kairotic process that led to a perceived fulfillment: abolition. Thus, the dissertation examines the rhetorical strategies used by white abolitionists to construct an abolitionist kairos that was designed to produce salvation for white Britons more than it was to help free blacks. The dissertation especially examines the three major texts produced by black persons living in England during the late eighteenth centuryIgnatius Sancho's Letters of the Late Ignatius Sancho (1782), Ottobauh Cugoano's Thoughts and Sentiments on the Evil of Slavery (1787), and Olaudah Equiano's The Interesting Narrative of the Life of Olaudah Equiano, or Gustavus Vassa, the African (1789)to illustrate how black rhetoric was appropriated by whites to fulfill their own kairotic desires. By examining the rhetorical strategies employed in both white and black rhetorics, the dissertation illustrates how the abolitionists thought the movement was shaped by, and how they were shaping the movement through, kairotic time. While the dissertation contends that the abolition movement was rhetorically designed to provide redemption, …
Date: December 1999
Creator: Evans, Dennis F.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

A Different Drummer: A Chamber Opera

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A Different Drummer is a chamber opera adaptation of Donald Davis's story "A Different Drummer" from his collection Listening for the Crack of Dawn, published by August House. The opera lasts about seventy minutes, and calls for a cast of three and an orchestra of sixteen players. It contains a prologue, epilogue and four scenes in a single act. The score is prefaced by a paper describing the musical strategies employed in setting the story as an opera. Three chapters describe the adaptation from short story to opera, the essential musical elements, and details of the application of the musical elements in each scene of the opera. The libretto is presented in the fourth chapter.
Date: May 1999
Creator: Friedman, Arnold Jacob
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Parents' Understanding of Developmentally Appropriate Practice in Early Childhood Education

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The intent of this study was to determine what understanding and knowledge parents had of developmentally appropriate practice (DAP). The study examined whether the beliefs of parents who enrolled their children in a National Association for the Education of Young Children (NAEYC) accredited program had any impact on their expectations for a philosophy and curriculum that is centered around DAP. In addition, the study examined whether parents' understanding of DAP changed when their children transitioned from infant and toddler programs, to preschool. The study group consisted of parents with children in two privately owned NAEYC accredited centers in 1998 (N=131). Results from parent reports indicated a high level of parent knowledge regarding DAP.
Date: May 1999
Creator: Grebe, Julie M.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

A Qualitative Study of the Use and Value of Financial Performance Indicators in Selected Community Colleges in the State of Texas as Perceived by their Chief Executive Officers

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Throughout the United States, colleges and universities are faced with an increasing need for financial funding, while at the same time resources continue to diminish. With the limitations of available funds, community colleges must exhibit efficiencies in the operations of their institutions. External interests, such as governing boards and legislatures, require demonstration of efficient financial management. This evidence is then used to make decisions concerning future financial support for the community college. This study determined if community college chief executive officers use financial performance indicators as provided by the State Auditor's Office and if the chief executive officers of the community colleges value the compilation and the distribution of the financial performance indicators. In the selected colleges, many of the chief executive officers depend on their chief financial officer for understanding and application of financial performance indicators. The performance indicators distributed by the Auditor's Office captured only a snapshot of the college's performance, and failed to fully describe the whole college performance or specific financial events captured by the indicators. Though the indicators had flaws, either through incorrect data or lack of explanation, the CEOs did value their compilation because they provided a means for ‘getting the community college story' …
Date: December 1999
Creator: Hase, Karla Luan Neeley
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Techniques of Sensual Perception: The Creation of Emotional Pathways

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Some artists strive to create artwork that has aesthetic value. If a piece of artwork has the ability to capture the attention of an audience, it must contain strong sensual attributes. Thus, understanding how to design an art form to contain strong sensual attributes may increase the possibility of an aesthetic experience. Since aesthetics is an experience of sensations perceived when in contact with a creative form in any artistic discipline, it is necessary for an artist to understand the nature of the sensual experience. In understanding the sensual experience, artists may be able to create techniques to enhance the aesthetic experience of their work. My video piece, entitled Ararat is a study of methods to enhance the sensual experience. I hope to accomplish this by means of using techniques that optimize an audience's perceptual experience.
Date: December 1999
Creator: Henry, Jon L.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Mercado de Fort Worth: Issues and Opportunities

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The Mercado de Fort Worth is a commercial area located between downtown Fort Worth and the "stockyards" entertainment district in a Hispanic neighborhood. Many of the buildings are vacant and in need of renovation. To promote area development, the City of Fort Worth has encouraged property owners to create a market area of Mexican-theme restaurants and shops. Property owners have expressed concern about potential returns on renovation investments. This study provides property owners with information regarding several similar projects across the country. The report finds that basic economic and site location principles are the main determinants of project success. The report also reviews local business training and assistance resources. Finally, the report provides information regarding "historic" building designations and associated tax incentives available to property owners
Date: August 1999
Creator: Hernandez, Gustavo
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Peer Education: Building Community Through Playback Theatre Action Methods

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The primary purpose of this study was to use some of the action methods of playback theatre to facilitate the acquisition of knowledge through the experience of building community. The impact of action methods on group dynamics and the relationship among methods, individual perceptions, and the acquisition of knowledge were analyzed. The researcher suggested that playback theatre action methods provided a climate in which groups can improve the quality of their interactions. The Hill Interaction Matrix (HIM) formed the basis for the study's analysis of interactions. Since the researcher concluded there were significantly more interactions coded in the "power quadrant" after training, the researcher assumed that playback theatre action methods are a catalyst for keeping the focus on persons in the group, encouraging risk-taking behaviors, and producing constructive feedback between members. Based on session summaries, individual interviews, and an analysis of the Group Environment Scale (GES), the training group became more cohesive, became more expressive, promoted independence, encouraged self-discovery, and adapted in innovative ways. The experience of an interconnected community created a space where positive growth could occur. The researcher concluded that the process of community building is intricately connected with a person's ability to make meaning out of experiences. …
Date: August 1999
Creator: Kintigh, Monica R.
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Secondary Traumatic Stress Disorder in the Therapists from the Oklahoma City Bombing

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Little empirical research has been done to examine the effects that working with traumatized individuals has had on their therapists. It is known that mental health professionals often do suffer ill effects, especially symptoms of secondary traumatic stress disorder. The present investigation tested predictors of secondary traumatic stress disorder in the therapists who provided services for the Oklahoma City bombing. Predictors were therapist social network involvement, years of counseling experience, and amount of self-reported empathy experienced from others. Indicators of secondary traumatic stress were the Frederick Reaction Index-A, the Compassion Fatigue Self-test for Helpers, and the SCL-90R. Hypotheses were tested using a series of hierarchical multiple regressions. Results demonstrated no significance for years of experience or social network, but perceived empathy accounted for 11% of the variance on the SCL-90 and the Compassion Fatigue Self-test for Psychotherapists with social network and years of experience controlled.
Date: May 1999
Creator: Landry, Lisa Pinkenburg
Object Type: Thesis or Dissertation
System: The UNT Digital Library