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open access

Ability Estimation Under Different Item Parameterization and Scoring Models

Description: A Monte Carlo simulation study investigated the effect of scoring format, item parameterization, threshold configuration, and prior ability distribution on the accuracy of ability estimation given various IRT models. Item response data on 30 items from 1,000 examinees was simulated using known item parameters and ability estimates. The item response data sets were submitted to seven dichotomous or polytomous IRT models with different item parameterization to estimate examinee ability. The accur… more
Date: May 2002
Creator: Si, Ching-Fung B.
Partner: UNT Libraries
open access

Alcohol and Other Drugs: Attitudes and Use Among Graduate/Professional Students at a Health Science Center

Description: Alcohol and other drug use continue to be a major issue on college and university campuses. Few studies have examined alcohol and other drug related issues for a graduate or professional student population. This study examines attitudes, incidents, and consequences of alcohol and other drug use among students enrolled at an academic heath science center. This study incorporated a descriptive research design and utilized the CORE Alcohol and Drug Survey for the collection of data. The data were … more
Date: August 2002
Creator: Moorman, Mark Thomas
Partner: UNT Libraries
open access

Analysis Of Sequential Barycenter Random Probability Measures via Discrete Constructions

Description: Hill and Monticino (1998) introduced a constructive method for generating random probability measures with a prescribed mean or distribution on the mean. The method involves sequentially generating an array of barycenters that uniquely defines a probability measure. This work analyzes statistical properties of the measures generated by sequential barycenter array constructions. Specifically, this work addresses how changing the base measures of the construction affects the statististics of m… more
Date: December 2002
Creator: Valdes, LeRoy I.
Partner: UNT Libraries
open access

And Drops of Rain Fall Like Tears: A Composition for Electroacoustic Music and Video

Description: And Drops of Rain Fall Like Tears is a composition for electroacoustic music with an optional ambient video component. The composition consists of a single movement electroacoustic work twenty-two minutes in duration. The piece creates an immersive sonic environment within the confines of a typical concert space, thereby recreating the powerful temper and subtle beauty of nature from different sonic perspectives. The paper is divided into four chapters, each discussing an element of the piece … more
Date: May 2002
Creator: Thompson, Michael Allen
Partner: UNT Libraries
open access

Anything Like Us

Description: Anything Like Us is a collection of poems with a critical introduction. In this introduction, I explore modern alternatives to Romantic and Neo-Romantic lyric expression. I conclude that a contemporary lyric that desires to be, in some fashion, about itself, must exhibit an acceptance of the mediating influences of time and language, while cultivating an inter-subjective point-of-view that does not insist too much on the authority of a single, coherent voice. The poems in Anything Like Us r… more
Date: August 2002
Creator: Roth, Matthew
Partner: UNT Libraries
open access

Assessing the Effect of Inquiry-Based Professional Development on Science Achievement Tests Scores.

Description: This study analyzed student test scores to determine if teacher participation in an inquiry-based professional development was able to make a statistically significant difference in student achievement levels. Test scores for objectives that assessed the critical thinking skills and problem-solving strategies modeled in a science inquiry institute were studied. Inquiry-based experiences are the cornerstones for meeting the science standards for scientific literacy. State mandated assessment tes… more
Date: December 2002
Creator: Dickson, Teresa K.
Partner: UNT Libraries
open access

Assessing the Efficacy of Learning Communities at Four North Texas Community Colleges.

Description: This observational study involving intact groups and convenient sampling examined learning communities at four North Texas Community Colleges. The purpose of this study was to determine if there was a significant difference in cathectic learning climate, inimical ambiance, academic rigor, affiliation and structure among students in learning communities and freestanding classes. Learning communities are gaining nationwide popularity as instruments of reform in Higher Education. Recent studies ha… more
Date: August 2002
Creator: Dodd, Patricia M.
Partner: UNT Libraries
open access

An Assessment of the Parent Orientation Program at the University of North Texas

Description: Although most institutions offer a parent program option to the orientation program, there has been little formalized research into the quality, planning or programming of parent orientation. There has been very little research into the impact parent orientation has on parents and whether or not they feel that such programs have met their needs, particularly by gender, minority status, educational background, or by geographic distance from the institution. This study seeks to determine the effe… more
Date: December 2002
Creator: With, Elizabeth
Partner: UNT Libraries

Attrition Rates of Teachers Trained in Alternative Teacher Certification Programs, Those Trained in the Centers for the Professional Development of Teachers, and Those Trained in Traditional University Programs.

Description: This study uses teacher employment data provided by the State Board for Educator Certification to examine the similarities and differences between initial employment and attrition rates of teachers trained in three prevalent types of Texas teacher preparation programs; alternative certification programs (ACP), the centers for professional development of teachers (CPDT), and traditional certification programs (TCP). The population for the study includes all Texas teachers who completed training … more
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Date: May 2002
Creator: Harris, Steven A.
Partner: UNT Libraries
open access

Automaticity and Hemispheric Specialization in Emotional Expression Recognition: Examined using a modified Stroop Task

Description: The main focus of this investigation was to examine the automaticity of facial expression recognition through valence judgments in a modified photo-word Stroop paradigm. Positive and negative words were superimposed across male and female faces expressing positive (happy) and negative (angry, sad) emotions. Subjects categorized the valence of each stimulus. Gender biases in judgments of expressions (better recognition for male angry and female sad expressions) and the valence hypothesis of hemi… more
Date: August 2002
Creator: Beall, Paula M.
Partner: UNT Libraries
open access

Autoradiographic Localization of Carbachol-Induced Second Messenger Response in the Rat Spinal Cord Following Inflammation.

Description: This study examined central mechanisms of persistent pain using an autoradiographic technique to localize phosphoinositide hydrolysis (PI) in the rat spinal cord dorsal horn. The lateral half of laminae I-II showed the highest levels of baseline PI turnover and carbachol-stimulated PI turnover in normal animals as well as after inflammation. Inflammation resulted in increased baseline PI turnover in this region of the ipsilateral (76%) and contralateral (65%) dorsal horns. Carbachol increased P… more
Date: May 2002
Creator: Moore, Jack
Partner: UNT Libraries
open access

Bandanna, An Opera by Daron Aric Hagen with Libretto by Paul Muldoon, Commissioned by the College Band Directors National Association: The Origins of an Artwork with a Glimpse at its Musical Character Development

Description: All information for this study was obtained by original source documents, interviews with the principal participants and the personal observations of the writer. A complete transcript of interviews with Daron Aric Hagen Michael Haithcockand Robert De Simone are included as appendices. In1961 the College Band Directors National Association (CBDNA) created its commissioning project for the purpose of contracting prominent composers to contribute works of high quality to the growing wind repertoir… more
Date: December 2002
Creator: Powell, Edwin C.
Partner: UNT Libraries

Burying the War Hatchet: Spanish-Comanche Relations in Colonial Texas, 1743-1821

Description: This dissertation provides a history of Spanish-Comanche relations during the era of Spanish Texas. The study is based on research in archival documents, some newly discovered. Chapter 1 presents an overview of events that brought both people to the land that Spaniards named Texas. The remaining chapters provide a detailed account of Spanish-Comanche interaction from first contact until the end of Spanish rule in 1821. Although it is generally written that Spaniards first met Comanches at San A… more
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Date: May 2002
Creator: Lipscomb, Carol A.
Partner: UNT Libraries
open access

Carl Gottlieb Reissiger (1798-1859) Forgotten Composer for the Clarinet

Description: Carl Gottlieb Reissiger was a successful German composer, conductor, and teacher in the first half of the nineteenth century. At the height of his career, he was Hofkapellmeister of theater and opera in Dresden, a position he held until his death. He was a composer of more than 200 works in a multitude of different genres. Today he is mainly known as a composer of opera, a small portion of his total output as a composer. He wrote approximately eighty piano solos, eighty collections of songs or … more
Date: May 2002
Creator: Coltman, Charles Arthur
Partner: UNT Libraries
open access

Cayes, Coral, Tourism and Ethnicity in Belize

Description: The development of tourism and more importantly eco-tourism has emerged as a primary objective for the government of Belize, Central America. This study examines two villages Seine Bight and Placencia located on a peninsula occupied by separate ethnic groups (Garifuna and Creole) that is located on a peninsula in Southern Belize. Seine Bight and Placencia are undergoing a change in economic activity to tourism. The study attempts to understand the role of ethnicity, socio-economic status, am… more
Date: August 2002
Creator: Key, Carol
Partner: UNT Libraries
open access

"Ch'io t'abbandono" by Felix Mendelssohn Bartholdy: A Dramatic Image of the Education and Aptitudes of the Composer

Description: The unpublished concert aria, "Ch'io t'abbandono," by Felix Mendelssohn Bartholdy (1825), is representative of the adolescent composer's developing musical aesthetic. In this study, Mendelssohn's education, work ethic, and perfectionism are revealed, paradoxically, as both the catalysts for the piece's composition and also the reasons it was not published during Mendelssohn's lifetime. An exploration of the text, form, thematic usage, and performance demands of the aria yields specific examples… more
Date: August 2002
Creator: Turley, Charles William
Partner: UNT Libraries
open access

The Characteristics of Sociological Practitioners: A Social Psychological Examination

Description: Questionnaires were sent by mail and e-mail to 143 members of the Sociological Practice Association. The purpose of the questionnaire was to measure the role expectations as qualities (competencies), role expectations as actions, and role enactments of the respondents'. An additional goal was to examine how respondents perceived their work to be sociological in nature, and how they saw their work as different from the practices of social workers, counselors, and psychologists. The first questi… more
Date: May 2002
Creator: Carr, Joel Lance
Partner: UNT Libraries

Characterization of cDNA and Genomic Clones for a Palmitoyl-acyl Carrier Protein Thioesterase and an Osmotin-Like PR5 Protein in Gossypium Hirsutum.

Description: Putative cotton cDNA clones and cognate genomic clones for a palmitoyl-acyl carrier protein (ACP) thioesterase (PATE) and an osmotin-like pathogenesis-related 5 (PR5) protein have been isolated and characterized. PATE is a class B fatty acid thioesterase with specificity for saturated long-chain fatty acids such as palmitate, and is implicated as a key enzyme to be targeted for regulation of fatty acid synthesis in order to alter cotton seed oil profiles. A nearly full-length 1.7-kb cDNA clon… more
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Date: May 2002
Creator: Yoder, David W.
Partner: UNT Libraries
open access

Chief Student Affairs Officers in 4-Year Public Institutions of Higher Education: An Exploratory Investigation Into Their Conflict Management Styles and Praxis

Description: This study investigated the conflict management styles of chief student affairs officers in 4-year public institutions of higher education in the Southern Association of Colleges and Schools. The data for the study were collected using Hall's Conflict Management Survey. The sample for the study consisted of 25 chief student affairs officers. The purpose of the study was to identify the conflict management style preferences of chief student affairs officers. The other variables studied to as… more
Date: August 2002
Creator: Van Duser, Trisha Lynn
Partner: UNT Libraries
open access

Cohort Differences in Perceptions of Helpful Counselor Characteristics

Description: The present study examined age cohort differences in older and younger adults as they relate to perceptions of helpful counselor characteristics. The present study also assessed whether previous help-seeking behavior influences perceptions of what counselor characteristics would be helpful. The social influence model is used as basis for predictions. The first research hypothesis for the present study was that there would be an age by cohort interaction in perceptions of helpful counselor ch… more
Date: August 2002
Creator: Utermark, Tamisha L
Partner: UNT Libraries
open access

Coming in From the Cold: Integration into the European Union and Public Opinion on Democracy and the Market Economy in Central and Eastern Europe.

Description: The political economy transformations of the countries of Central and Eastern Europe have received a great deal of attention over the past decade. The focus of much research has been to examine the internal national reorientations of the countries with regard to the changes in political and economic conditions. The importance of the international reorientation of these countries toward Western Europe in general and the European Union in particular has been generally overlooked. This dissertatio… more
Date: May 2002
Creator: Zottarelli, Lisa K.
Partner: UNT Libraries
open access

A Common Representation Format for Multimedia Documents

Description: Multimedia documents are composed of multiple file format combinations, such as image and text, image and sound, or image, text and sound. The type of multimedia document determines the form of analysis for knowledge architecture design and retrieval methods. Over the last few decades, theories of text analysis have been proposed and applied effectively. In recent years, theories of image and sound analysis have been proposed to work with text retrieval systems and progressed quickly due in par… more
Date: December 2002
Creator: Jeong, Ki Tai
Partner: UNT Libraries
open access

Comparative biochemistry and genetic analysis of nucleoside hydrolase in Escherichia coli, Pseudomonas aeruginosa, and Pseudomonas fluorescens.

Description: The pyrimidine salvage enzyme, nucleoside hydrolase, is catalyzes the irreversible hydrolysis of nucleosides into the free nucleic acid base and D-ribose. Nucleoside hydrolases have varying degrees of specificity towards purine and pyrimidine nucleosides. In E. coli, three genes were found that encode homologues of several known nucleoside hydrolases in protozoa. All three genes (designated yaaF, yeiK, and ybeK) were amplified by PCR and cloned. Two of the gene products (yeiK and ybeK) encode … more
Date: December 2002
Creator: Fields, Christopher J.
Partner: UNT Libraries
open access

A Comparison of Aural and Visual Instructional Methodologies Designed to Improve the Intonation Accuracy of Seventh Grade Violin and Viola Instrumentalists.

Description: The purpose of the study was to compare two instructional methodologies designed to improve the intonation accuracy of seventh grade violin and viola instrumentalists. The collection of data was in regard to (1) instructional methodology: aural and aural/visual, (2) performance tasks: A, B, and C; (3) individual pitches (seven from each of the music tasks), and (4) differences between instrument groups: violin and viola. Sixty-eight seventh grade string students from three string classes of two… more
Date: May 2002
Creator: Núñez, Mario Leoncio
Partner: UNT Libraries
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