I am conducting a CFA on a questionnaire with 4 factors. I know that the exploratory factor analysis to obtain theses 4 factors was done using oblimin rotation. I am now wondering, if this affects the model I have to build with lavaan-package in R.
Following the tutorial on the lavaan website I built the following model:
cfa.model <- 'factor1 =~ item1 + item2 + item3 + item4 + item5 + item6 factor2 =~ item7 + item8 + item9 + item10 + item11 + item12 factor3 =~ item13 + item14 + item15 + item16 + item17 + item18 factor4 =~ item19 + item20 + item21 + item22 + item23 + item24'
As the factors were calculated using oblimin type rotation I am not sure if I have to allow correlations between the factors and if so, how to include this in my model?