Hi, In a discussion of factor analysis in "Using Multivariate Statistics" by Tabachnick and Fidell, two matrices are singled out as important for interpreting an exploratory factor analysis (EFA) with an oblique promax rotation. One is the "structure matrix". The structure matrix contains the correlations between variables and factors. However, these correlations may be inflated because some of the variance in a factor may not be unique to it. To address this and facilitate the interpretation of factors, the "pattern matrix" can be calculated as it contains the unique correlations between variables and factors (that is, the variance shared among factors has been removed).
Are the loadings returned from factanal() with a promax rotation the structure or the pattern matrix? How do I calculate which ever one of the matrices is not returned by factanal? Thanks, Steve ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
