Abstract

Three heuristic methods of assessing the dimensionality of binary item pools were evaluated in a Monte Carlo investigation. The indices were based on (1) the local independence of unidimensional tests; (2) patterns of second-factor loadings derived from simplex theory; and (3) the shape of the curve of successive eigenvalues. (SLD)

Citation

Roznowski, M. (1991). Three Approaches to Determining the Dimensionality of Binary Items. Applied Psychological Measurement, 15(2), 109. Retrieved August 15, 2024 from https://www.learntechlib.org/p/145493/.

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Keywords

• Comparative Analysis
• Computer Simulation
• Correlation
• EVALUATION METHODS
• Factor Analysis
• Heuristics
• Item Banks
• Monte Carlo Methods
• Test Items