Bias and Precision of the Squared Canonical Correlation Coefficient under Nonnormal Data Conditions (open access)

Bias and Precision of the Squared Canonical Correlation Coefficient under Nonnormal Data Conditions

This dissertation: (a) investigated the degree to which the squared canonical correlation coefficient is biased in multivariate nonnormal distributions and (b) identified formulae that adjust the squared canonical correlation coefficient (Rc2) such that it most closely approximates the true population effect under normal and nonnormal data conditions. Five conditions were manipulated in a fully-crossed design to determine the degree of bias associated with Rc2: distribution shape, variable sets, sample size to variable ratios, and within- and between-set correlations. Very few of the condition combinations produced acceptable amounts of bias in Rc2, but those that did were all found with first function results. The sample size to variable ratio (n:v)was determined to have the greatest impact on the bias associated with the Rc2 for the first, second, and third functions. The variable set condition also affected the accuracy of Rc2, but for the second and third functions only. The kurtosis levels of the marginal distributions (b2), and the between- and within-set correlations demonstrated little or no impact on the bias associated with Rc2. Therefore, it is recommended that researchers use n:v ratios of at least 10:1 in canonical analyses, although greater n:v ratios have the potential to produce even less bias. …
Date: August 2006
Creator: Leach, Lesley Ann Freeny
System: The UNT Digital Library

A Comparison of Written Composition Assessment Using Standard Format Versus Alternate Format Among College-Bound Students with Learning Disabilities and/or Attention-Deficit/Hyperactivity Disorder.

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The purpose of this study was to explore the efficacy of using a computer word processing program in the assessment of written expression with college-bound individuals who had been diagnosed with a learning disability (LD) and/or attention-deficit/hyperactivity disorder (ADHD). Fifty-six (35 eleventh and 21 twelfth) graders, attending a private college-preparatory school for students with LD and/or ADHD, were administered the Spontaneous Writing composite of the Test of Written Expression - Third Edition (TOWL-3). The TOWL-3 has equivalent forms, Form A and Form B. One form was administered in accordance with the test manual, using paper and pencil (standard format). The other form (i.e., alternate format) was administered with word processing access. Paired samples tests (repeated measure) and bivariate correlation designs were computed to explore the relationships between measures. Results of the study revealed significant increases (p<.01) in the subtest and composite scores when participants were administered the test in the alternate format. Other components of the research study did not reveal strong meaningful relationships when cognitive ability, graphomotor speed, and keyboarding rate were compared with the standard and/or alternative formats of the writing composite. A high rate of comorbity was exhibited with the majority of participants (75%) having two or …
Date: December 2006
Creator: Morris, Mary Ann
System: The UNT Digital Library
Cross-Cultural Validation of the Will, Skill, Tool Model of Technology Integration (open access)

Cross-Cultural Validation of the Will, Skill, Tool Model of Technology Integration

The teacher professional development component of the will, skill, tool model of technology integration was tested for predictive validity in the cross-cultural context of data from Texas, USA, and data from Mexico City, Mexico. Structural equation modeling (SEM) analysis, path analysis, and multiple regression analysis, were statistical procedures employed. The analyses yielded positive results for the model's validity and reliability. The resulting model was found to be a reliable tool to evaluate technology integration among elementary and middle school teachers in Texas and in Mexico City. For the purposes of this study, the teacher professional development component of the will, skill, tool model of technology integration is referred to as the will, skill, tool model of technology integration (WiSTTI). This was one of the seven alternative models tested for goodness of fit across a total of 7 data samples. The structural equation modeling approach proved to be a good technique to find the best fit model in a cross-cultural environment. Latent variables and a set of parameters to judge the validity and reliability of each model were set for testing and retesting in an iterative process. Eventually a "new" modified version of the WiSSTI model was found to fit the …
Date: May 2006
Creator: Morales Velázquez, Cesáreo
System: The UNT Digital Library

Current Practices in Working With Special Education Paraeducators.

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With so many paraeducators working in special education, it is important for teachers, administrators, and researchers to know how paraeducators are being utilized, supervised, and managed in order to create the most effective programs for students with special needs. Research is needed regarding current practices in supervising paraeducators. The purposes of this study were to (a) delineate the current practices being utilized by special education teachers of students with emotional and behavioral disorders (EBD) who supervise paraeducators that work with students with EBD in the general education classroom and (b) determine how effective the supervised paraeducators perceive those practices to be. Current practices were revealed by answering the following questions: (1) According to special education teachers and paraeducators, what procedures and practices are being utilized to supervise paraeducators who work in the general education environment with students with EBD? (2) In what ways do teachers and paraeducators see these supervision practices as being effective? (3) What is the relationship between actual supervision practices and accepted best practices? There were 60 participants in all, 30 professional teachers and 30 paraeducators. All 60 participants completed a survey; of these 60, 5 teachers and 5 paraeducators were individually interviewed Findings from the study …
Date: December 2006
Creator: Asel, Crystal S.
System: The UNT Digital Library
The Effects of ARCS-based Confidence Strategies on Learner Confidence and Performance in Distance Education. (open access)

The Effects of ARCS-based Confidence Strategies on Learner Confidence and Performance in Distance Education.

The purpose of this research was to manipulate the component of confidence found in Keller's ARCS model to enhance the confidence and performance of undergraduate students enrolled in an online course at a Texas university using SAM 2003 software delivery. This study also tested whether the aforementioned confidence tactics had any unintentional effect on the remaining attention, relevance, and satisfaction subscales of the ARCS model as well as on learners' overall motivation for the class and the instructional materials. This study was conducted over a 5.5-week period with an initial sample of 81 total students. Two quantitative surveys were used to measure confidence and motivation: (a) the Course Interest Survey (CIS), and (b) the Instructional Materials Motivation Survey (IMMS). The results indicated that the treatment group showed statistically greater gains than the control group in terms of learner confidence on the CIS but not the IMMS. In terms of performance, the treatment group outperformed the control group on all of the individual posttest measures and on the overall aggregate mean performance score. The results showed no statistically significant difference on the attention subsection of the ARCS model. However, statistically significant differences were noted for the relevance and satisfaction subscales of …
Date: May 2006
Creator: Huett, Jason Bond
System: The UNT Digital Library
The Effects of Team Dynamics Training on Conceptual Data Modeling Task Performance (open access)

The Effects of Team Dynamics Training on Conceptual Data Modeling Task Performance

Database modeling is a complex conceptual topic often taught through the use of project-based teams. One of the problems with the use of project-based teams in university courses is the determination of whether this is the most effective use of instructor and student time involvement and effort level. Therefore, this study investigated the impact of providing team dynamics training prior to the commencement of short-duration project-based team conceptual data modeling projects on individual data modeling task performance (DMTP) outcomes and team cohesiveness. The literature review encompassed conceptual data design modeling, the use of a project-based team approach, team dynamics and cohesion, self-efficacy, gender, and diversity. The research population consisted of 75 university students at a North American University (Canadian) pursuing a business program requiring an information systems course in which database design components are taught. Analysis of the collected data revealed that there was a statistically significant inverse relationship found between the provision of team dynamics training and individual DMTP. However, no statistically significant relationship was found between team dynamics training and team cohesion. Therefore, this study calls into question the value of team dynamics training on learning outcomes in the case of very short duration project-based teams involved in …
Date: December 2006
Creator: Menking, Ricky Arnold
System: The UNT Digital Library
Enhanced learning performance in the middle school classroom through increased student motivation, by the use of educational software and question-based gaming technology. (open access)

Enhanced learning performance in the middle school classroom through increased student motivation, by the use of educational software and question-based gaming technology.

The purpose of this research was to determine if the introduction of a competitive and collaborative computer-based gaming software system into middle school classrooms would result in improved attendance and grades, and motivate students to have a greater interest in their studies. This study was conducted over a 6 week period, with attendance and performance data being collected from 284 students. Two quantitative surveys were used to measure course interest and motivation: (a) the Course Interest Survey (CIS), and (b) the Instructional Materials Motivation Survey (IMMS). Participation in these surveys consisted of 84 students taking the CIS and 40 students taking the IMMS. The results indicated that the experimental group showed statistically better scores than the comparison group in attendance and performance. Students participating in the experimental group had significantly lower mean ranks of absenteeism compared to students in the comparison group. Results also revealed significant differences on grades. Students that were in the experimental group had significantly higher grades compared to students that were in the comparison group. Results of the CIS suggest that a statistically significant difference does not exist on Attention, Relevance, Confidence, and Satisfaction between the experimental and comparison groups. Results of the means and standard …
Date: December 2006
Creator: Dorr, David L.
System: The UNT Digital Library
Exploring the relationship between continuing professional education and job satisfaction for information technology professionals in higher education. (open access)

Exploring the relationship between continuing professional education and job satisfaction for information technology professionals in higher education.

The study had four main hypotheses that examined the relationships between job satisfaction and the reasons for attending continuing professional education (CPE). The purpose of this study was to examine the relationships between training and job satisfaction with the objective of adding to the body of knowledge related to both job satisfaction and training and development. Participation Reasons Scale was used to measure the reasons for attending CPE activities, and the Job in General Scale and Job Descriptive Index was used to measure job satisfaction. The surveys were administered over the Internet to information technology professionals working in higher education. The participants were contacted by email with a message explaining the purpose of the research and a Web link that took the participants directly to the survey. After collecting the data, it was exported into SPSS and analyzed using Spearman Rho and Mann Whitney U statistics and a simple structure exploratory factor to determine any underlying structures between the job satisfaction and CPE.
Date: May 2006
Creator: Bennett, Sandra M.
System: The UNT Digital Library
Hiring preferences of employers of entry-level biomedical equipment technicians in Texas. (open access)

Hiring preferences of employers of entry-level biomedical equipment technicians in Texas.

This study examined the signaling strength, or marketing power, of the most common qualifications of entry-level biomedical equipment technicians (BMETs) in Texas, based on stated hiring preferences of BMET managers, using order ranking of fictitious resumes. This study also sought to determine whether certification status, education background, military training background as a BMET, or type of employer [hospital or ISO] of the hiring manager had an effect on hiring preference for applicant qualifications of associate degree, military training as a BMET, or certified biomedical equipment technician (CBET) certification candidacy. Participants were asked to rank 16 fictitious resumes representing the most common qualifications of entry-level BMETs and to fill out a background questionnaire regarding their education, military, certification, and employer. The number of times each resume ranked in first place was tabulated and inter-rater reliability was calculated. Resumes with qualifications of associate degree versus military training as a BMET were compared at three levels of work experience. A chi-square test for independence was conducted for the comparisons to determine whether work experience influenced preference. Chi-square tests were also conducted for comparisons of associate degree with candidacy for CBET certification versus associate degree and military training with CBET candidacy versus military training. …
Date: December 2006
Creator: Bowles, Roger A.
System: The UNT Digital Library
An investigation of prior learning assessment processes in Texas public universities offering nontraditional baccalaureate degrees. (open access)

An investigation of prior learning assessment processes in Texas public universities offering nontraditional baccalaureate degrees.

Undergraduate enrollment in colleges and universities has grown and changed drastically over the past 2 decades, with a significant portion of this growth coming from the increased number of nontraditional students who have made the decision to make their way onto college and university campuses to pursue a college degree. Due to these changes, many institutions of higher education have had to rethink the way they have historically operated. In an attempt to better meet the needs and demands of adult nontraditional students, colleges and universities have reviewed their existing programs and instituted programs that allow for the awarding of academic credit for prior learning. For those institutions of higher education involved in the prior learning assessment (PLA) process and interested in providing a quality program, an increased emphasis and focus should be on the importance of determining what a learning activity is, and more importantly, what constitutes college-level learning. This study focused on the identification and profiling of prior learning assessment (PLA) processes in Texas public universities offering nontraditional baccalaureate degree programs, the identification of commonalties among such programs, and the determination of program quality based on established standards. The instrument utilized in this study was designed on Urban …
Date: May 2006
Creator: Freed, Rusty
System: The UNT Digital Library
Jobs for America's Graduates: A school-to-career program. (open access)

Jobs for America's Graduates: A school-to-career program.

The purpose of this study was to examine a school-to-career program created and operated by a non-profit organization called Jobs for America's Graduates, Inc. (JAG). During the school year 2003-2004, they provided this service to 12,205 students in 426 schools and 21 states. Data was collected to measure the following: (a) were they successful in helping students graduate from high school, find a career, enter postsecondary education or the military; (b) how many of the youth were still employed 12 months after graduation; and (c) did school demographic and socioeconomic factors affect JAG's performance. JAG is a 25 year old organization that works with at-risk youth to help them graduate from high school and move into gainful employment, further education or the military. They provide students with nine months of in school instruction, mentoring, career connections and 12 months of follow-up service. Data was collected by job specialists through job placement reports and 12 month follow-up reports. School demographic and socioeconomic information was collected via the Internet. This study discovered that JAG students are graduating from high school at levels well above the national rates, attaining 90% graduation rather than the average of 68% (Swanson, 2004a). A year after graduation …
Date: May 2006
Creator: Calloway, J'Quita Payne
System: The UNT Digital Library
Measurement and Utility of Functional Behavioral Assessments and Behavior Intervention Plans in Classrooms for Students with Emotional and Behavioral Disorders (open access)

Measurement and Utility of Functional Behavioral Assessments and Behavior Intervention Plans in Classrooms for Students with Emotional and Behavioral Disorders

This research study examined how education service providers conduct functional behavioral assessments and utilize behavior intervention plans to address the social and emotional needs of students with challenging behaviors. The data are based on a 20-item survey administered to educators who identified themselves as working with students diagnosed with emotional and behavioral disorders. The results and implications of the survey are discussed and evaluated to the review of literature conducted prior to the study. Recommendations for future research are also explored.
Date: December 2006
Creator: Couvillon, Michael A.
System: The UNT Digital Library
Measuring the Perceived Transfer of Learning and Training for a Customer Service Training Program Delivered by Line Managers to Call Center Employees in a Fortune 200 Financial Services Company (open access)

Measuring the Perceived Transfer of Learning and Training for a Customer Service Training Program Delivered by Line Managers to Call Center Employees in a Fortune 200 Financial Services Company

The purpose of this study was to explore what effect manager involvement in the delivery of training has on employee learning (transfer of learning) and on student behavior after training (transfer of training). Study participants were randomly assigned to the experimental and control groups and a customer service training program was delivered with and without manager involvement. Quantitative and qualitative data were collected immediately after training using a retrospective pretest-then/posttest-now instrument developed to measure the participants' perceived transfer of learning. Quantitative and qualitative data were collected approximately 4 weeks after training also using a retrospective pretest-then/posttest-now instrument developed to measure the participants' perceived transfer of training. Quality assurance data generated by the organization for the first full month after the training program was completed were collected to measure the actual transfer of training. A 13-item version of the Marlowe-Crowne Social Desirability Scale (MC-C) was included with the perceived transfer of training survey to measure the potential for self-perception bias with the perceived transfer of learning and the perceived transfer of training data. ANOVA results for the perceived transfer of learning and perceived transfer of training data indicated that there were no statistically significant differences between the experimental and control groups. …
Date: December 2006
Creator: Perez, Gustavo A.
System: The UNT Digital Library
A model of best practice: Leadership development programs in the nuclear industry. (open access)

A model of best practice: Leadership development programs in the nuclear industry.

This study looked at leadership development at top performing nuclear plants in the United States. The examination of leadership development as actually practiced in the nuclear energy industry lead to the development of a best practice model. The nuclear industry is self-regulated through the Institute for Nuclear Power Operations (INPO). INPO has been evaluating nuclear plants over the past 15 years. Recently they have identified supervisor performance as a key factor in poor plant performance. INPO created a model for leadership development called Growing Industry Leaders. The nuclear industry has identified its aging workforce and subsequent loss of leadership as an emerging issue facing the nuclear industry in the next five to ten years. This initiative was aimed at both the supervisor shortfalls identified through plant evaluations and the state of the workforce within the nuclear industry. This research evaluated the elements of this model and compared them to a model of best practice. This research answered the following questions: What elements of leadership development should be included in leadership development programs? What would a model of best practice in leadership development look like? Data was collected from nine out of 103 top performing plants. Development activities were categorized by …
Date: August 2006
Creator: Thatcher, Gregory W.
System: The UNT Digital Library
A study of the relationship between work experience and occupational work ethic characteristics of baccalaureate nursing students. (open access)

A study of the relationship between work experience and occupational work ethic characteristics of baccalaureate nursing students.

The primary purpose of this study was to test the theory of experiential learning by measuring to what extent work experience predicts the work ethic characteristics of students in baccalaureate nursing programs at three regional universities in Texas, including Midwestern State University in Wichita Falls, Tarleton State University in Stephenville, and West Texas A&M University in Canyon. Work experience is the amount full-time or part-time on-the-job experience. Work ethic attributes are referred to as considerate, ambitious, dependable, and cooperative. Results generated in this study failed to reject the null hypotheses, which means that work experience, does not provide evidence of the ability to predict the development of work ethic characteristics in baccalaureate nursing students who participated in this research study. Knowledge generated in this study provided alternative directions for future research with respect to the relationship between work experiences and work ethic characteristics in nursing students. Such research may be useful to nursing educators and trainers in the design and delivery phases of the educational process for nurses.
Date: May 2006
Creator: Kegans, Loyd
System: The UNT Digital Library
Technology adoption and integration levels: A comparison study between technology-minded general educators and technology-minded deaf educators. (open access)

Technology adoption and integration levels: A comparison study between technology-minded general educators and technology-minded deaf educators.

The purpose of this study was to determine whether working in the field of deaf education, as opposed to general education, results in a higher level of technology integration. A secondary goal was to determine if deaf educators who are deaf integrate technology at a higher level than their hearing counterparts. The instrument chosen for this study was the LoTi Technology Use Profile, a tool used to explore the role of technology in the classroom. A total of 92 participates were included in the study of which 48 were regular educators and 44 were deaf educators. The participants were selected from a population pool whereby teachers were presumably pre-disposed to using technology based upon their attendance at a technology training session in the form of a conference or a class. Deaf educators as a whole did not perform as well as general educators on the LoTi scales. Given the fact that the technology-minded general educators who comprised the sample population of this study scored exceptionally high on the LoTi scales, further research is needed to ensure comparability between the two groups. The findings of the current study do suggest, though, that deaf educators who are deaf have the potential to …
Date: August 2006
Creator: Parton, Becky Sue
System: The UNT Digital Library
Well-Being of Gifted Students Following Participation in an Early-College-Entrance Program (open access)

Well-Being of Gifted Students Following Participation in an Early-College-Entrance Program

The concepts of well-being and life satisfaction are explored in this study of the experiences and psychological traits of highly-gifted students who have been radically accelerated into an early-college-entrance program. The study was conducted after participation in the early-college-entrance program. The primary focus of the study is on personal well-being and life satisfaction including the variables of subjective well-being, efficacy, and the dispositional traits of cheerfulness, seriousness, and bad mood. These variables are gathered as the initial phase of a longitudinal study of the early-college entrants' personal and professional experiences, their life satisfaction, and dispositions. The subjects for this study were participants in the Texas Academy of Math and Science (TAMS). TAMS is a state run early-college-entrance program at the University of North Texas in Denton.
Date: December 2006
Creator: Boazman, Janette Kay
System: The UNT Digital Library