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1 results

  • Factor Analysis for Non-Normal Variables

  • Ab Mooijaart
  • Journal:
    Psychometrika / Volume 50 / Issue 3 / September 1985
    Published online by Cambridge University Press:
    01 January 2025, pp. 323-342

  • Factor analysis for nonnormally distributed variables is discussed in this paper. The main difference between our approach and more traditional approaches is that not only second order cross-products (like covariances) are utilized, but also higher order cross-products. It turns out that under some conditions the parameters (factor loadings) can be uniquely determined. Two estimation procedures will be discussed. One method gives Best Generalized Least Squares (BGLS) estimates, but is computationally very heavy, in particular for large data sets. The other method is a least squares method which is computationally less heavy. In one example the two methods will be compared by using the bootstrap method. In another example real life data are analyzed.