Psychometric Properties of Multidimensional Perfectionism Scale (MPS)

Objective: In this study, psychometric qualities of multidimensional perfectionism scale (MPS) were evaluated. Methods: Persian version of perfectionism inventory was completed by 48 adults (24 females and 24 males). The sample was selected by cluster random sampling from Sarcheshmeh adult inhabitants. Reliability of the scale was assessed by calculating Cronbach;#39s alpha coefficient. Then 260 adults completed perfectionism inventory. Factor analysis was applied to data as an index of construct validity. Results: Cronbach;#39s alpha coefficient indicated that perfectionism inventory could demonstrate an acceptable reliability. In addition, investigation showed a significant validity. Factor analysis indicated that this measure has one factor in line with other databases in this regard. Conclusion: MPS has an acceptable reliability and validity and showed acceptable psychometric qualities. However, in this research only one of three factors (self-oriented perfectionism) that constructors proposed (self- oriented, other-oriented and socially prescribed perfectionism) was validated.

Psychometric Properties of Multidimensional Perfectionism Scale (MPS) Keywords:

Perfectionism , MPS perfectionism inventory , Psychometric qualities