, Volume 46, Issue 4, pp 407–419

Simultaneous factor analysis of dichotomous variables in several groups

  • Bengt Muthén
  • Anders Christoffersson

DOI: 10.1007/BF02293798

Cite this article as:
Muthén, B. & Christoffersson, A. Psychometrika (1981) 46: 407. doi:10.1007/BF02293798


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 comparisonsinvariant measurement parametersfactor means

Copyright information

© The Psychometric Society 1981

Authors and Affiliations

  • Bengt Muthén
    • 1
  • Anders Christoffersson
    • 1
  1. 1.University of UppsalaSweden
  2. 2.Department of PsychologyUniversity of California, Los AngelesLos Angeles