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Showing 31 to 45 of 257 results Save | Export
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Wei, Youhua; Thompson, Bruce; Cook, C. Colleen – portal: Libraries and the Academy, 2005
LibQUAL+[TM] data to date have not been subjected to the modern measurement theory called polytomous item response theory (IRT). The data interpreted here were collected from 42,090 participants who completed the "American English" version of the 22 core LibQUAL+[TM] items, and 12,552 participants from Australia and Europe who…
Descriptors: Foreign Countries, Psychometrics, Library Services, Item Response Theory
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Vacha-Haase, Tammi; Thompson, Bruce – Journal of Counseling Psychology, 2004
The present article presents a tutorial on how to estimate and interpret various effect sizes. The 5th edition of the Publication Manual of the American Psychological Association (2001) described the failure to report effect sizes as a "defect" (p. 5), and 23 journals have published author guidelines requiring effect size reporting. Although…
Descriptors: Effect Size, Research Methodology, Computation, Data Interpretation
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Trusty, Jerry; Thompson, Bruce; Petrocelli, John V. – Journal of Counseling and Development, 2004
The purpose of this article is to assist researchers in meeting the requirement of reporting effect sizes in quantitative research studies submitted to the Journal of Counseling & Development. This requirement is detailed in the "Guidelines for Authors" included in this issue. The authors provide practical information on generating, reporting, and…
Descriptors: Effect Size
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Graham, James M.; Guthrie, Abbie C.; Thompson, Bruce – Structural Equation Modeling: A Multidisciplinary Journal, 2003
Confirmatory factor analysis (CFA) is a statistical procedure frequently used to test the fit of data to measurement models. Published CFA studies typically report factor pattern coefficients. Few reports, however, also present factor structure coefficients, which can be essential for the accurate interpretation of CFA results. The interpretation…
Descriptors: Factor Analysis, Factor Structure, Data Interpretation
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Thompson, Bruce; Cook, Colleen; Heath, Fred – Structural Equation Modeling, 2003
Used confirmatory factor analysis to evaluate the score integrity of LibQUALl+, an instrument to measure perceptions of library service quality. Results for 60,027 graduate and undergraduate students suggest that the model implied by LibQUAL is reasonable and invariant across independent samples and fits all three major subgroups of library users.…
Descriptors: College Students, Evaluation Methods, Factor Structure, Higher Education
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Cook, Colleen; Heath, Fred M.; Thompson, Bruce – portal: Libraries and the Academy, 2003
One of the two major ways of interpreting LibQUAL+[TM] data involves placing perceived service quality ratings within "zones of tolerance" defined as the distances between minimally-acceptable and desired service quality levels. This study compared zones of tolerance on the 25 LibQUAL+[TM] items across undergraduate, graduate student and…
Descriptors: Academic Libraries, Comparative Analysis, Higher Education, Library Research
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Thompson, Bruce – Journal of Counseling & Development, 2002
The present article reviews and distinguishes three related but different types of significance: "statistical,""practical," and "clinical." A framework for conceptualizing the many 'Practical" effect size indices is described. Several effect size indices that counseling researchers can use are summarized. (Contains 58 references.) (GCP)
Descriptors: Counseling, Counseling Effectiveness, Research and Development, Research Design
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Snyder, Patricia; Thompson, Bruce; McLean, Mary E.; Smith, Barbara J. – Journal of Early Intervention, 2002
Findings are reported related to the research methods and statistical techniques used in 450 group quantitative studies examined by the Council for Exceptional Children's Division for Early Childhood Recommended Practices Project. Studies were analyzed across seven dimensions including sampling procedures, variable selection, variable definition,…
Descriptors: Disabilities, Early Childhood Education, Early Intervention, Educational Practices
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Vacha-Haase, Tammi; Thompson, Bruce – Journal of Counseling & Development, 2002
Instruments measuring Carl Jung's (1921/1971) theory of psychological types have been widely used in various counseling contexts, including career counseling, marital and family therapy, and team building. The most popular measure of types, the Myers-Briggs Type Indicator (MBTI), was developed by Katherine C. Briggs and her daughter, Isabel Briggs…
Descriptors: Team Training, Psychometrics, Family Counseling, Career Counseling
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Henson, Robin K.; Thompson, Bruce – Measurement and Evaluation in Counseling and Development, 2002
T. Vacha-Haase (1998) proposed her "reliability generalization" methodology to characterize (a) typical score reliability for a measure across studies, (b) the variability of score reliabilities, and (c) what measurement protocol features predict the variability in score reliabilities across administration. The present article provides…
Descriptors: Error of Measurement, Generalization, Psychometrics, Research Methodology
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Thompson, Bruce; Cook, Collen – Educational and Psychological Measurement, 2002
Conducted a reliability generalization meta-analysis of subscale and total scale scores on the Web-administered LibQUAL+ (tm) (Cook and others, 2002), a measure of library service quality. Data for 18,161 participants from 43 universities show that score reliabilities are remarkably invariant across campuses and different over groups. (SLD)
Descriptors: College Students, Generalization, Higher Education, Library Services
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Thompson, Bruce – Educational Researcher, 2002
An improved quantitative science would emphasize the use of confidence intervals (CIs), especially CIs for effect sizes. This article reviews definitions and issues related to developing these intervals. CIs for effect sizes are especially valuable because they facilitate meta-analytic thinking and interpretations of intervals via comparison with…
Descriptors: Educational Research, Effect Size, Elementary Secondary Education, Social Science Research
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Heath, Fred M.; Thompson, Bruce; Cook, Colleen; Thompson, Russel L.; Kyrillidou, Martha – portal: Libraries and the Academy, 2002
Includes four articles that discuss LibQUAL+[TM], a collaborative effort of the Association of Research Libraries and Texas A&M University responding to the need for greater accountability in measuring the delivery of library services to research library users. Discusses the reliability of LibQUAL+[TM] scores in measuring perceived library…
Descriptors: Academic Libraries, Accountability, Correlation, Higher Education
Henson, Robin K.; Thompson, Bruce – 2001
Given the potential value of reliability generalization (RG) studies in the development of cumulative psychometric knowledge, the purpose of this paper is to provide a tutorial on how to conduct such studies and to serve as a guide for researchers wishing to use this methodology. After some brief comments on classical test theory, the paper…
Descriptors: Coding, Error of Measurement, Psychometrics, Reliability
Thompson, Bruce; Vidal-Brown, Sherry A. – 2001
Analysts differ quite heatedly over the use of principal components rather than principle axis factor analysis. The difference between the two approaches involves the entries used on the diagonal of the matrix of associations that is analyzed. This paper uses an actual data set (N=539; variables =98) to illustrate that these two methods converge…
Descriptors: Factor Analysis, Factor Structure
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