, Volume 46, Issue 4, pp 407-419

First online:

Simultaneous factor analysis of dichotomous variables in several groups

  • Bengt MuthénAffiliated withUniversity of Uppsala
  • , Anders ChristofferssonAffiliated withUniversity of Uppsala

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A new method is proposed for a simultaneous factor analysis of dichotomous responses from several groups of individuals. The method makes it possible to compare factor loading pattern, factor variances and covariances, and factor means over groups. The method uses information from first and second order proportions and estimates the model by generalized least-squares. Hypotheses regarding different degrees of invariance over groups may be evaluated by a large-sample chi-square test.

Key words

group comparisons invariant measurement parameters factor means