Use what talents you possess; the woods would be very silent if no birds sang except those that sang best.  ~Henry van Dyke

Requests for Measures, Reprints and Information

Dr. Hewitt, in collaboration Dr. Gordon Flett and other researchers, has developed various clinical and research instruments for assessment of various aspects of perfectionistic behaviour. In addition, a treatment approach for perfectionistic behaviour has been developed and is currently being refined. This approach is based on a psychodynamic/interpersonal model of psychotherapy and can be used in individual or group formats.

Descriptions of available measures follow below. With the exception of the Multidimensional Perfectionism Scale These scales are available directly through the lab.

Please use our request form to request scales, article reprints and/or other information.

We will try our best to fulfill your request.


Perfectionism Measures


Multidimensional Perfectionism Scale (MPS)  -   A measure of perfectionism traits including self-oriented, other-oriented, and socially prescribed perfectionism dimensions (Hewitt & Flett, 1991). This is available only from Multihealth Systems Inc. Toll-free number within North America: 1-800-268-6011 & for countries outside North America: +1 416 492 2627. Click here to go directly to the MPS order form on the Multihealth Systems website.

Perfectionistic Self-Presentation Scale (PSPS)  -   A measure of the interpersonal expression of perfectionistic behaviour including perfectionistic self-promotion, nondisplay of imperfection, and nondisclosure of imperfection (Hewitt et al., 2003). Click here to request this scale.

Perfectionistic Cognitions Inventory (PCI)  -   A measure of automatic perfectionistic cognitions regarding perfectionistic behaviour (Flett, Hewitt, Blankstein & Gray, 1998). Click here to request this scale.

Child and Adolescent Perfectionism Scale (CAPS)  -   A measure of self-oriented and socially prescribed perfectionism dimensions for children and adolescents (Flett et al., in press). Click here to request this scale.

Perfectionistic Self-Presentation Scale - Junior Form (PSPS-Jr)  -   A measure of perfectionistic self-presenation for children and adolescents (under development).

Perfectionism Discrepancies Inventory (PDI)  -   A measure of discrepancies between needing to be perfect (based on self-oriented and socially prescribed perfectionism) and self-judgements regarding how perfect one is (under development).

Perfectionistic Sentence Completion Measure  -   A projective measure of precursors and  motivations that underlie perfectionistic behavior. (under development).




MPS: Hewitt, P. L., & Flett, G. L. (1991). Perfectionism in the self and social contexts: Conceptualization, assessment, and association with psychopathology. Journal of Personality and Social Psychology, 60(3), 456-470.(back to measures)


PSPS: Hewitt, P. L., Flett, G. L., Sherry, S. B., Habke, M., Parkin, M., et al. (2003). The interpersonal expression of perfection: Perfectionistic self-presentation and psychological distress. Journal of Personality and Social Psychology, 84(6), 1303-1325.(back to measures)


PCI: Flett, G. L., Hewitt, P. L., Blankstein, K. R., & Gray, L. (1998). Psychological distress and the frequency of perfectionistic thinking. Journal of Personality and Social Psychology, 75(5), 1363-1381.(back to measures)


CAPS: Flett, G., Hewitt, P. L., Boucher, D. J., Davidson, L. A., & Munro, Y. (2000). The Child-Adolescent Perfectionism Scale: Development, Validation, and Association with Adjustment. Unpublished manuscript.(back to measures)



Back to measures


Paul L. Hewitt, Ph.D, R. Psych.
Professor of Psychology
University of British Columbia
Office: 604-822-5827
Email: phewitt (at)






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