Replicability of first-order 16PF-5 factors: an analysis of three parcelling methods

In the present study, the primary factor structure of the 16PF-5 is analysed with both the items and parcels obtained through three different methods in a sample of 288 males and 347 females with a mean age of 25.09 years (SD: 9.20). Four factor extraction methods, Scree Test, Parallel Analysis, Eigenvalue One and Maximum Likelihood suggested different number of factors for the 16PF-5, with the Scree Test being the most adequate to represent the theoretical factor structure of this instrument. In regard to parcels, factor extraction methods pointed to between 8 and approximately 20 factors. The analysis of the items of the 16 PF-5 extracting 16 factors, achieved a 63% correct classification of the items in their theoretical factors, while the Single Factor (S) item parcelling method achieved a completely correct classification (100%) when fixing the δ parameter to −2.