title: Psych package: Which exploratory factor analysis method to apply
body: <p>I am trying to conduct an exploratory factor analysis R using the psych package. My data consists of items from different scales- they are all very skewed, but differ in their number of response catgories (ranging from 4 to 7). Which factor analysis method should I use? Minres or WLS? 
  After conducting the EFA I want to conduct CFAs using the lavaan package. Here the estimator MLM seems appropriate for my data. In MPlus there is a MLM method available for exploratory and confirmatory factor analysis. Do you know which factor analysis method most likely corresponds in psych to the MLM estimator? Or what do you think about transforming the data?
  Thank you for your help, kind regards
  A.  </p>