What Is 16PF?
16PF (the Sixteen Personality Factor Questionnaire) was developed in the 1940s and 50s by British-born psychologist Raymond Cattell. Cattell used factor analysis, a statistical technique, to boil down thousands of words describing personality into 16 distinct source traits. The widely used Fifth Edition system dates to 1993, and the alphabetical codes shown here (A, B, C, E, F, G, H, I, L, M, N, O, Q1-Q4) come from that version.
How Does It Compare to the Big Five?
Where the Big Five summarizes personality at a higher level, using five broad traits, 16PF breaks personality down into 16 more granular dimensions. Researchers have shown that grouping 16PF's sub-factors back together tends to produce dimensions similar to the Big Five, suggesting the two frameworks aren't really in conflict, just operating at different levels of detail.
Frequently Asked Questions
Is one end of each factor considered better than the other?
No. Each factor is a value-neutral spectrum, low and high represent different tendencies, not better or worse ones. That said, one end can be more advantageous in a specific job or situation.
Why are D, J, K, and P missing from the codes?
During early development, some candidate factors didn't hold up as statistically distinct or ended up being absorbed into other factors, so those letters were never assigned in the final 16-factor system that's used today.
H · Social Boldness
Low: tends to be shy and holds back. High: tends to be bold and unfazed by unfamiliar situations.