I have a general question about factor loadings of items in Confirmatory and Exploratory Factor Analysis. Fitting a CFA model to a data set based on factor loadings (e. g.
cfa() of the
lavaan package) of an exploratory factor analysis will result in a CFA model. The output gives me estimates of factor loadings of all indicators, which are different for the same item, compared to the value they got for the same factor in EFA.
I would like to know, why is that the case? And which value should be considered for evaluating the "goodness of fit" of the item to the respective factor?