I am using Mplus for an EFA on 68 items. The higher the number of factors, the better the fit gets and, particularly, the Chi-square difference is always significant for each addition of one factor I tried (until now 12).
Parallel analysis run in spss suggested 6 factors and MAP-analysis suggested 8 factors.
So my question is: when should one stop adding factors in Mplus? Which are the best indices? I fear that if I only base my argumentation on the interpretability of the factor solution this may sound to a reviewer like chosing the result that fulfil my expections.