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Direct linkChiu, Chia-Yi – Applied Psychological Measurement, 2013
Most methods for fitting cognitive diagnosis models to educational test data and assigning examinees to proficiency classes require the Q-matrix that associates each item in a test with the cognitive skills (attributes) needed to answer it correctly. In most cases, the Q-matrix is not known but is constructed from the (fallible) judgments of…
Descriptors: Cognitive Tests, Diagnostic Tests, Models, Statistical Analysis
