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Yi, Yeon-Sook – Applied Measurement in Education, 2017
This study compares five cognitive diagnostic models in search of optimal one(s) for English as a Second Language grammar test data. Using a unified modeling framework that can represent specific models with proper constraints, the article first fit the full model (the log-linear cognitive diagnostic model, LCDM) and investigated which model…
Descriptors: English (Second Language), Grammar, Language Tests, Cognitive Measurement