Equating makes it possible to compare performances on different forms of a test. Three different equating methods (baseline selection, subgroup, and subscore equating) using common-item item response theory equating were examined for their impact on detection of treatment effects in multilevel models.
Bibliographical notePublisher Copyright:
Copyright © 2019 JMASM, Inc.
- Common-item IRT equating
- MCMC estimation
- generalized partial credit model
- mixture Rasch model
- subgroup equating
- subscore equating