Simulated data (30 items, G-DINA model)

Simulated data, Q-matrix and item parameters for a 30-item test measuring 5 attributes.

Usage

data(sim30GDINA)

A list with components:

simdat: simulated responses of 1000 examinees
simQ: artificial \(30 \times 5\) Q-matrix
simItempar: artificial item parameters(probability of success for each latent group)

Ma, W., & de la Torre, J. (2020). GDINA: An R Package for Cognitive Diagnosis Modeling. Journal of Statistical Software, 93(14), 1-26.

Wenchao Ma, The University of Minnesota, wma@umn.edu