Asparouhov and Muthén (2014) presented a new method for multiple-group confirmatory factor analysis (CFA), referred to as the alignment method. The alignment method can be used to estimate group-specific factor means and variances without requiring exact measurement invariance. A strength of the method is the ability to conveniently estimate models for many groups, such as with comparisons of countries. This paper focuses on IRT applications of the alignment method. An empirical investigation is made of binary knowledge items administered in two separate surveys of a set of countries. A Monte Carlo study is presented that shows how the quality of the alignment can be assessed.
IRT studies of many groups: the alignment method
Published 2014 in Frontiers in Psychology
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- Publication year
2014
- Venue
Frontiers in Psychology
- Publication date
2014-09-12
- Fields of study
Medicine, Computer Science, Economics, Psychology
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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