85 Matching Results

Search Results

Advanced search parameters have been applied.

in creator/contributor: "Swigger, Kathleen M."

open access

The Generalization of the Logistic Discriminant Function Analysis and Mantel Score Test Procedures to Detection of Differential Testlet Functioning

Two procedures for detection of differential item functioning (DIF) for polytomous items were generalized to detection of differential testlet functioning (DTLF). The methods compared were the logistic discriminant function analysis procedure for uniform and non-uniform DTLF (LDFA-U and LDFA-N), and the Mantel score test procedure. Further analysis included comparison of results of DTLF analysis using the Mantel procedure with DIF analysis of individual testlet items using the Mantel-Haenszel (… more

Date: August 1994

Creator: Kinard, Mary E.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Computer-Supported Collaborative Work and Its Application to Software Engineering in a Case Environment

This study investigated, in the context of a field-based case study, possibilities for formation of a synergistic union between CSCW and CASE tools. A major dimension of today's software challenge is in gearing up for large-scale system development necessitating large teams of systems engineers. The principal goal of this research was to advance the body of knowledge regarding the nature of collaborative technological support in the software development process. Specifically, the study was desi… more

Date: May 1997

Creator: Bailey, Janet L.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Rhythms of Interaction in Global Software Development Teams

Researchers have speculated that global software teams have activity patterns that are dictated by work-place schedules or a client's need. Similar patterns have been suggested for individuals enrolled in distant learning projects that require students to post feedback in response to questions or assignments. Researchers tend to accept the notion that students' temporal patterns adjust to academic or social calendars and are a result of choices made within these constraints. Although there is … more

Date: August 2010

Creator: Kesavan Nair Meena, Suneetha Nair

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Communication Quality in Information Systems Development: The Effect of Computer-Mediated Communication on Task-Oriented Problem Solving

The problem motivating this research is that ineffective communication may hamper systems development efforts. Specifically germane to this study are development efforts characterized as task-oriented, and which require information-sharing and problem-solving activities. This research problem motivated an analysis of the communication process and lead to the development of a temporal framework that delineates variables associated with task-oriented, end user/systems analyst communication inter… more

Date: May 1986

Creator: Smith, Jill Yvonne

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Errors in Looping and Assignment by Novice Assembly Language Programmers

The problem with which this investigation is concerned is an analysis of errors in looping and assignment made by novice assembly language computer programmers. This analysis is made after subjects write three computer programs. The verbal definition of the problem for each program specifies, without naming, either a for, while, or repeat looping structure. The purposes of the study are the following; to determine whether using the appropriate looping structure is related to writing a correct p… more

Date: December 1983

Creator: Melkus, Lovie Ann Jeffrey

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Reverse Transfer Students: Students Who Transfer from Area Universities to the Junior College

A study was conducted to identify demographic and academic characteristics of students transferring from North Texas area senior colleges to Tarrant County Junior College (Texas) in the Fall 1984 semester. Academic characteristics were measured at the point of transfer and during subsequent junior college enrollment(s) through Spring 1989. Transcripts of 608 reverse transfer students were examined. Non-Completers, students who transferred prior to completing a baccalaureate degree, were identif… more

Date: August 1990

Creator: Jackson, Cathie J. (Cathie Jean)

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

An Osmoreceptive Zone Around the Nucleus Circularis

The nucleus circularis has been linked to a role in regulating osmotic thirst but evidence has also shown that full bilateral destruction of the nucleus circularis was not necessary to achieve a deficit in drinking behavior after an osmotic challenge. The present study attempted to answer two primary research questions. The first question was whether osmoreceptive cells existed around the nucleus circularis in a homogeneous fashion or if these cells existed in a structured fashion stretching fr… more

Date: August 1985

Creator: Wallace, Forrest Layne

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

An Experimental Study of Teachers' Verbal and Nonverbal Immediacy, Student Motivation, and Cognitive Learning in Video Instruction

This study used an experimental design and a direct test of recall to provide data about teacher immediacy and student cognitive learning. Four hypotheses and a research question addressed two research problems: first, how verbal and nonverbal immediacy function together and/or separately to enhance learning; and second, how immediacy affects cognitive learning in relation to student motivation. These questions were examined in the context of video instruction to provide insight into distance l… more

Date: May 2000

Creator: Witt, Paul L.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Korean Studies in North America 1977-1996: A Bibliometric Study

This research is a descriptive bibliometric study of the literature of the field of Korean studies. Its goal is to quantitatively describe the literature and serve as a model for such research in other area studies fields. This study analyzed 193 source articles and 7,166 citations in the articles in four representative Korean and Asian studies journals published in North America from 1977 to 1996. The journals included in this study were Korean Studies (KS), the Journal of Korean Studies (JKS)… more

Date: December 1999

Creator: Chun, Kyungmi

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

An Analysis of the Ability of an Instrument to Measure Quality of Library Service and Library Success

This study consisted of an examination of how service quality should be measured within libraries and how library service quality relates to library success. A modified version of the SERVQUAL instrument was evaluated to determine how effectively it measures library service quality. Instruments designed to measure information center success and information system success were evaluated to determine how effectively they measure library success and how they relate to SERVQUAL. A model of library … more

Date: December 1999

Creator: Landrum, Hollis T.

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

The Object-Oriented Database Editor

Because of an interest in object-oriented database systems, designers have created systems to store and manipulate specific sets of abstract data types that belong to the real world environment they represent. Unfortunately, the advantage of these systems is also a disadvantage since no single object-oriented database system can be used for all applications. This paper describes an object-oriented database management system called the Object-oriented Database Editor (ODE) which overcomes this d… more

Date: December 1989

Creator: Coats, Sidney M. (Sidney Mark)

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Modeling and Analysis of Intentional And Unintentional Security Vulnerabilities in a Mobile Platform

Mobile phones are one of the essential parts of modern life. Making a phone call is not the main purpose of a smart phone anymore, but merely one of many other features. Online social networking, chatting, short messaging, web browsing, navigating, and photography are some of the other features users enjoy in modern smartphones, most of which are provided by mobile apps. However, with this advancement, many security vulnerabilities have opened up in these devices. Malicious apps are a major thr… more

Date: December 2014

Creator: Fazeen, Mohamed & Issadeen, Mohamed

Item Type: Thesis or Dissertation

Partner: UNT Libraries

An Empirical Investigation of Critical Factors that Influence Data Warehouse Implementation Success in Higher Educational Institutions

Data warehousing (DW) in the last decade has become the technology of choice for building data management infrastructures to provide organizations the decision-making capabilities needed to effectively carry out its activities. Despite its phenomenal growth and importance to organizations the rate of DW implementation success has been less than stellar. Many DW implementation projects fail due to technical or organizational reasons. There has been limited research on organizational factors and… more

Access: Restricted to UNT Community Members. Login required if off-campus.

Date: May 2003

Creator: Mukherjee, Debasish

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Smartphone-based Household Travel Survey - a Literature Review, an App, and a Pilot Survey

High precision data from household travel survey (HTS) is extremely important for the transportation research, traffic models and policy formulation. Traditional methods of data collection were imprecise because they relied on people’s memories of trip information, such as date and location, and the remainder data had to be obtained by certain supplemental tools. The traditional methods suffered from intensive labor, large time consumption, and unsatisfactory data precision. Recent research tre… more

Date: December 2014

Creator: Wang, Qian (Computer scientist)

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

A Unifying Version Model for Objects and Schema in Object-Oriented Database System

There have been a number of different versioning models proposed. The research in this area can be divided into two categories: object versioning and schema versioning. In this dissertation, both problem domains are considered as a single unit. This dissertation describes a unifying version model (UVM) for maintaining changes to both objects and schema. UVM handles schema versioning operations by using object versioning techniques. The result is that the UVM allows the OODBMS to be much smaller… more

Date: August 1997

Creator: Shin, Dongil

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

A Systems Analysis Approach to Implementing Computers in Educational Environments

The problems with which this study is concerned are to determine the applicability of the systems analysis process to educational settings and to provide data concerning the beliefs and attitudes of educators concerning educational computing. A questionnaire was used in a case study of a medium-sized Texas independent school district to measure the beliefs and attitudes of educators toward educational applications of computers. Chi-square goodness of fit tests that use specified frequencies wer… more

Date: August 1983

Creator: Norris, Cathleen Mercadante

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

The Use of Learning Theory in the Application of Artificial Intelligence to Computer-Assisted Instruction of Physics

It was the purpose of this research, to develop and test an artificially intelligent, learner-based, computer-assisted physics tutor. The resulting expert system is named ARPHY, an acronym for ARtificially intelligent PHYsics tutor. The research was conducted in two phases. In the first phase of the research, the system was constructed using Ausubel's advance organizer as a guiding learning theory. The content of accelerated motion was encoded into this organizer after sub-classification accord… more

Date: August 1985

Creator: Brown, Stephen F. (Stephen Francis)

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

A Comparison of Two Differential Item Functioning Detection Methods: Logistic Regression and an Analysis of Variance Approach Using Rasch Estimation

Differential item functioning (DIF) detection rates were examined for the logistic regression and analysis of variance (ANOVA) DIF detection methods. The methods were applied to simulated data sets of varying test length (20, 40, and 60 items) and sample size (200, 400, and 600 examinees) for both equal and unequal underlying ability between groups as well as for both fixed and varying item discrimination parameters. Each test contained 5% uniform DIF items, 5% non-uniform DIF items, and 5% com… more

Date: August 1995

Creator: Whitmore, Marjorie Lee Threet

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Forest Landscape Dynamics: a Semi-Markov Modeling Approach

A transition model (MOSAIC) is used to describe forest dynamics at the landscape scale. The model uses a semi-Markov framework by considering transition probabilities and Erlang distributed holding times in each transition. Parameters for the transition model are derived from a gap model (ZELIG). This procedure ensures conceptual consistency of the landscape model with the fine scale ecological detail represented by the forest gap model. Spatial heterogeneity in the transition model is driven b… more

Date: August 1997

Creator: Ablan, Magdiel

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

An Investigation of Certification in Computer Science as a Teaching Field in Secondary Schools in the United States

The purpose of this study was to investigate the status of computer science teacher certification in the United States. Methods used included a survey of chief teacher certification officers in all fifty states to determine the status of each state concerning the certification of high school computer science teachers and a survey of forty selected leaders in the field of computer science education to determine the current and future status of computer science education and to identify the cours… more

Date: May 1983

Creator: Taylor, Harriet G. (Harriet George)

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

The Association Between Systematic Exposure to Information About Computers and Attitude Changes Among Students Who Are Non-Computer Majors

The problem with which this study is concerned is the association between systematic exposure to information about computers and attitude changes to computers among students who are non-computer majors. The experimental design includes a semester length course in introduction to computers at a small community college in Texas. The study has a twofold purpose. The first is to determine the pre-instruction direction and valence of attitudes of non-computer majors towards computers. The second is … more

Date: August 1989

Creator: Anderson, Glenda K. (Glenda Kay)

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

The Effects of Using Information Technology to Support Evaluation of Feedback and Implementation of Adjustments in an Organization's Strategic Planning Process

Organizations that must respond quickly to environmental pressures look for tools to assist in that response. Information technology may be one tool to facilitate the response. In this study the possible effects of using information technology, specifically a decision support system, in the feedback segment of one organization's strategic management loop were examined. The organization was one region of the Board of Probation and Parole in a central state. Personnel included administrators, par… more

Date: May 1997

Creator: Kemm, Elizabeth

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

An Empirical Investigation of Detail Design Tools and Cognitive Style of Software Developers

The purpose of this study is to identify what detail design tools are more productive for the different types of professional software developers. By establishing a match between the detail design tool and the cognitive style of the professional programmer, the end product (Information Systems) should be of a higher quality. Two laboratory experiments were conducted. The first experiment was with professional Software Developers; the second one was with students. The dependant variables conside… more

Date: May 1992

Creator: Flores-Rosales, Oscar

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

Impact of Query Specification Mode and Problem Complexity on Query Specification Productivity of Novice Users of Database Systems

With the increased demand for the utilization of computerized information systems by business users, the need for investigating the impact of various user interfaces has been well recognized. It is usually assumed that providing the user with assistance in the usage o-f a system would significantly increase the user's productivity. There is, however, a dearth of systematic inquiry into this commonly held notion to verify its validity in a scientific fashion. The purpose of this study is to inve… more

Date: December 1985

Creator: Jih, Wen-Jang

Item Type: Thesis or Dissertation

Partner: UNT Libraries