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Q-Matrix Impact on DINA Model in Math Assessment by Feng Yi is a document available to read on EtoBox.

What is Q-Matrix Impact on DINA Model in Math Assessment about?

This study investigates the impact of two Q-matrix specifications within the DINA model on a large-scale mathematics assessment. It compares a Q-matrix based on five predefined content categories with another developed from post hoc coding of 15 attributes, highlighting the trade-offs between model complexity and estimation precision. Results indicate that while both matrices correlate with raw scores, the finer-grained model presents challenges in estimation and interpretation.

Author

Feng Yi

Language

EN