To explore the relations among different perfectionism dimensions, positive affect and negative affect, testify the dual process model of perfectionism, a sample of 292 Chinese university students completed measures of the Frost Multidimensional Perfectionism Scale, Hewitt Multidimensional Perfectionism Scale, Slaney Almost Perfect Scale- Revised, Positive and Negative Affect Scale. The results showed that maladaptive perfectionism predicted negative affect significantly and positively, and predicted positive affect significantly and negatively, while adaptive perfectionism predicted positive ...