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Kelley, Ronald Scott – ProQuest LLC, 2012
Scope and Method of Study: This study focused on the development and use of the AT-SAT test battery and the Initial En Route Qualification training course for the selection, training, and evaluation of air traffic controller candidates. The Pearson product moment correlation coefficient was used to measure the linear relationship between the…
Descriptors: Traffic Safety, Scores, Equated Scores, Multiple Regression Analysis
Bilir, Mustafa Kuzey – ProQuest LLC, 2009
This study uses a new psychometric model (mixture item response theory-MIMIC model) that simultaneously estimates differential item functioning (DIF) across manifest groups and latent classes. Current DIF detection methods investigate DIF from only one side, either across manifest groups (e.g., gender, ethnicity, etc.), or across latent classes…
Descriptors: Test Items, Testing Programs, Markov Processes, Psychometrics
Roxbury, Tiese L. – ProQuest LLC, 2010
Federal legislation such as "No Child Left Behind" mandated that students with disabilities be included in accountability standards, creating an important responsibility to fairly assess all students, even those with disabilities. Consequently, a sense of urgency was placed on the entire educational system to ensure that these students…
Descriptors: Test Items, Testing Programs, Federal Legislation, Educational Testing