how to conduct a psychometric analysis how to analyze sample size what is principal components in psychometric studies which of the following is included in the principal-component analysis for a psychometric study? how many items for a pca what is principal component analysis in psychology why does a psychometric study need more components how to figure correlations on pca how is pca used in psychology how to do principal component analysis in psychology how many items are in a principal component analysis what is the principal component analysis of a psychometric study why use principal component in research how many items in the pca matrix how many items in a pca matrix what is principal component analysis? psychometrics how many items in the pca matrix do I need to aggregate how to get a pca what is the principal component analysis how many factors are needed in a principal component analysis