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Direct linkJinjin Huang – ProQuest LLC, 2020
Measurement invariance is crucial for an effective and valid measure of a construct. Invariance holds when the latent trait varies consistently across subgroups; in other words, the mean differences among subgroups are only due to true latent ability differences. Differential item functioning (DIF) occurs when measurement invariance is violated.…
Descriptors: Robustness (Statistics), Item Response Theory, Test Items, Item Analysis
Tannenbaum, Christyn E. – ProQuest LLC, 2009
Introduction. Missing data is a common problem in research and can produce severely misleading analyses, including biased estimates of statistical parameters, and erroneous conclusions. In its 1999 report, the APA Task Force on Statistical Inference encouraged authors to report complications such as missing data and discouraged the use of…
Descriptors: Statistical Data, Statistical Analysis, Misconceptions, Replication (Evaluation)
Orsi, Rebecca – ProQuest LLC, 2011
The purpose of this methodological study is to explore how well a process called "concept mapping" (Trochim, 1989) can articulate the theory which underlies a social program. Articulation of a program's theory is a key step in completing a sound theory based evaluation (Weiss, 1997a). In this study, concept mapping is used to…
Descriptors: Concept Mapping, Articulation (Education), Community Organizations, Program Development
Green, Jennifer L. – ProQuest LLC, 2010
Value-added modeling is an alternative approach to test-based accountability systems based on the proportions of students scoring at or above pre-determined proficiency levels. Value-added modeling techniques provide opportunities to estimate an individual teacher's effect on student learning, while allowing for the possibility to control for the…
Descriptors: Simulation, Scoring, Psychometrics, Data Analysis
Walters, Allison M. – ProQuest LLC, 2009
Four-year colleges and universities submit faculty teaching load and instructional cost data annually to the Delaware Study of Instructional Costs and Productivity. While the Delaware Study currently adjusts the calculation of annual FTE students to account for the difference in annual student credit hours (SCH) earned by students at semester and…
Descriptors: Semester System, Full Time Equivalency, Teaching Load, Doctoral Dissertations
Peer reviewedGreenberg, Marvin – Bulletin of the Council for Research in Music Education, 1988
Critiques a study comparing the effects of reality therapy to the effects of two other disciplinary systems--removal from class activity, and assigning extra work--on student perceptions of classroom behavior and on student attitudes. Greenberg commends Faber's use of reality therapy regarding music education but identifies weaknesses in research…
Descriptors: Classroom Techniques, Discipline, Doctoral Dissertations, Educational Research
