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 `500 \times 14`

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]