I have a question regarding data screening for an exploratory factor analysis (EFA).
I am conducting an EFA to identify the factor structure of 20 questions that I created on the topic of spirituality. I want to identify outliers in my sample using mahalanobis distances, and I am doing this on SPSS using a linear regression (
Analyze -> Regression -> Linear).
- I entered the 20 questions in SPSS as the "Independents", but what would variable should be entered under the "Dependent" category?
- Or, if I can't use SPSS to find the mahalanobis distances, is there another (easy!!) way to find the m distances?