Self-assessment of the four subtypes of perfectionism in the 2 × 2 model of perfectionism

The 2 × 2 model of perfectionism examines the relation between four subtypes of perfectionism and psychological adjustment (Gaudreau & Thompson, 2010). Researchers have investigated subtypes of perfectionism using common multivariate statistical analyses. The development of a new measure is warranted to evaluate whether individuals can, with a decent degree of certainty, assess by themselves their subtypes of perfectionism. Two studies with samples of university students were conducted to develop and provide initial evidence for the Self-Assessment of Perfectionism Subtypes (SAPS). Our measurement approach tries to simulate the features of mixture modeling by asking participants to assess a self-rated probability of belonging into each subtype of perfectionism. Using a finite-like and continuous scale, our results showed that self-rated probabilities of belonging in subtypes of perfectionism are significantly associated with traditional measures of perfectionism and consequential life outcomes in a way that mostly replicated past research and supported the four hypotheses of the model.