dimensionality test what fa how to evaluate likert items which is the most suitable approach to measure the dimensionality of a likert? which approach best measures dimensionality? which way does pca assess dimensionality of likert items? why do people use pca dimensionality of a likert scale what is the best measure of dimensionality of a scale what is fa pca what kind of efa do you use when to use pca or efa what is pca for dimensionality when do you use pca or efa what type of scale do you test dimensionality what to use for dimensionality how to check dimensionality of likert items why use efa in testing when using pca, what is more appropriate efa or pca? which technique is most appropriate for testing likert items? why should dimensionality be measured using pca?