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Direct linkSmits, Iris A. M.; Timmerman, Marieke E.; Meijer, Rob R. – Applied Psychological Measurement, 2012
The assessment of the number of dimensions and the dimensionality structure of questionnaire data is important in scale evaluation. In this study, the authors evaluate two dimensionality assessment procedures in the context of Mokken scale analysis (MSA), using a so-called fixed lowerbound. The comparative simulation study, covering various…
Descriptors: Simulation, Measures (Individuals), Program Effectiveness, Item Response Theory
Froelich, Amy G.; Habing, Brian – Applied Psychological Measurement, 2008
DIMTEST is a nonparametric hypothesis-testing procedure designed to test the assumptions of a unidimensional and locally independent item response theory model. Several previous Monte Carlo studies have found that using linear factor analysis to select the assessment subtest for DIMTEST results in a moderate to severe loss of power when the exam…
Descriptors: Test Items, Monte Carlo Methods, Form Classes (Languages), Program Effectiveness
