Simulated data (180 items, a combination of DINA, DINO, and A-CDM items)

Description

Simulated data, Q-matrix and item parameters for a 180-item bank with 5 attributes. Data generated using the gen.data function.

Usage

sim180combination

Format

A list with components:

simdat

Numeric array. Simulated responses of 250 examinees for two replicates

simQ

Numeric matrix. Simulated Q-matrix

simalpha

Numeric array. Simulated attribute patterns of 250 examinees for two replicates

specifications

A list that contains all the specifications that were used in the gen.itembank function