sim.dat {ACTCD} | R Documentation |
Simulated data
Description
The data are simulated based on the DINA model (Junker & Sijtsma, 2001).
Usage
data(sim.dat)
Format
A binary matrix.
Details
This data set contains responses of 500 examinees to 14 items and is used to demonstrate the functions in this package. The DINA model with a given Q-matrix (sim.Q
) was used to generate data and the true values for guessing and slipping parameters are fixed to 0.2.
References
Junker, B., & Sijtsma, K. (2001). Cognitive Assessment Models with Few Assumptions, and Connections with Nonparametric Item Response Theory. Applied Psychological Measurement, 25(3), 258-272.
Examples
data(sim.dat)
[Package ACTCD version 1.3-0 Index]