Select Publications

Hewitt, P. L. (2020). Perfectionism, belonging, and repairing: A Dynamic-Relational Approach to Perfectionism. Canadian Psychology, 61, 101-110.

Hewitt, P. L., Smith, M. M., Deng, X., Chen, C., Ko, A., Flett, G. L., & Paterson, R. J. (2020). The perniciousness of perfectionism in group therapy for depression: A test of the perfectionism social disconnection model. Psychotherapy. Advance online publication.

Hewitt, P. L., Qiu, T., Flynn, C. A., Flett, G. L., Wiebe, S. A., Tasca, G. A., & Mikhail, S. (2019). Dynamic-relational group treatment for perfectionism: Informant ratings of patient change. Psychotherapy. Advance online publication.

Chen, C., Hewitt, P. L., Flett, G. L. (2019).  Multidimensional Perfectionism and Borderline Personality Organization in Emerging Adults: A Two-Wave Longitudinal Study. Personality and Individual Differences.

Ko, A., Hewitt, P. L., Chen, C., & Flett, G. L. (2019). Perfectionism as a mediator between attachment and depression in children and adolescents. Perspectives on Early Childhood Psychology and Education, 4(2), 181-200.

Cheek, J., Kealy, D., Hewitt, P. L., Mikail, S. F., Flett, G. L., Ko, A., & Jia, M. (2018).  Addressing the complexity of perfectionism in clinical practice.  Psychodynamic Psychiatry, 46, 457-489.

Hewitt, P. L., Mikail, S.F., Flett, G. L., & Dang, S. (2018).  Specific Formulation Feedback in Dynamic-Relational Group Psychotherapy of Perfectionism.  Psychotherapy, 55, 179-185.

Rayman, J., Shapiro, B., Hewitt, P. L., & Flett, G. L. (2018). Perfectionism, Beliefs, and Adjustment in Dating Relationships. In Love, Romance, Sexual Interaction (pp. 39-68). Routledge.

Chen, C., Hewitt, P. L., & Flett, G. L. (2017). Ethnic variations in other-oriented perfectionism’s associations with depression and suicide behaviour. Personality and individual differences104, 504-509.

Blasberg, J. S., Hewitt, P. L., Flett, G. L.,  Sherry, S. B., & Chen, Chang. (2016).  The Importance of Item Wording: The Distinction Between Measuring High Standards Versus Measuring Perfectionism and Why It Matters. Journal of Psycho-educational Assessment, 34(7), 702-717.

Flett, G. L., Nepon, T., & Hewitt, P. L. (2016). Striving to understand the vulnerability of perfectionists: An analysis of goals, motives, and self-evaluative tendencies. Personality and Individual Differences, 477-478.

Flett, G. L., Nepon, T., Hewitt, P. L., & Fitzgerald, K. (2016). Perfectionism, components of stress reactivity, and depressive symptoms. Journal of Psychopathology and Behavioral Assessment, 38(4), 645-654.

Flett, G.L., & Hewitt, P.L. (2016). Still measuring perfectionism after all these years: Reflections and an introduction to the Special Issue on advances in the assessment of perfectionism. Journal of Psychoeducational Assessment, 34(7), 615-619.

Flett, G.L., Hewitt, P.L., Besser, A., Su, C., Vaillancourt, T., Boucher, D., Munro, Y., Davidson, L., & Gale, O. (2016). The Child-Adolescent Perfectionism Scale:  Development, psychometric properties, and associations with stress, distress, and psychiatric symptoms. Journal of Psychoeducational Assessment, 34(7), 634-652.

Flett, G.L., Hewitt, P.L., Su, C., & Flett, K.D. (2016). Perfectionism in language learners:  Review, conceptualization, and recommendations for teachers and school psychologists. Canadian Journal of School Psychology, 31(2), 75-101.

Flett, G.L., Mara, C., Hewitt, P.L., Sirois, F., & Molnar, D.M. (2016). How should discrepancy be assessed in perfectionism research? A psychometric analysis and proposed refinement of the Almost Perfect Scale—Revised.  Journal of Psychoeducational Assessment, 34(7), 718-732.

Flett, G.L., Molnar, D.S., & Hewitt, P.L. (2016). The traumatized perfectionist: Understanding the role of  perfectionism in post-traumatic reactions to stress. International Journal of Emergency Mental Health and Human Resilience, 18, 764-765.

Flett, G.L., Nepon, T., Hewitt, P.L., Molnar, D.S., & Zhao, W. (2016). Projecting perfection by hiding effort: Supplementing the Perfectionistic Self-Presentation Scale with a brief self-presentation measure. Self and Identity, 15(3), 245-261.

Nepon, T., Flett, G.L., & Hewitt, P.L. (2016). Self-image goals in trait perfectionism and perfectionistic self-presentation: Toward a broader understanding of the drives and motives of perfectionists. Self and Identity, 15(6), 683-706.

Hewitt, P. L., Mikail, S. F., Flett, G. L., Tasca, G., Flynn, C.A., Deng, X., Kaldas, J., Chen, C. (2015). Psychodynamic/Interpersonal group psychotherapy of perfectionism: Evaluating a short term treatment. Psychotherapy, 52(2), 205 -215.

Chen, C., Hewitt, P.L., & Flett, G.L. (2015). Preoccupied attachment, need to belong, shame, and interpersonal perfectionism: An investigation of the Perfectionism Social Disconnection Model. Personality and Individual Differences, 76, 177-182.

Sherry, S. B., Gralnick, T. M., Hewitt, P. L., Sherry, D. L., & Flett, G. L. (2014). Perfectionism and narcissism: Testing unique relationships and gender differences. Personality And Individual Differences61-6252-56. doi:10.1016/j.paid.2014.01.007

Flett, G. L., Hewitt, P. L., & Heisel, M. J. (2014). The destructiveness of perfectionism revisited: Implications for the assessment of suicide risk and the prevention of suicide. Review Of General Psychology18(3), 156-172. doi:10.1037/gpr0000011

Hewitt, P. L., Caelian, C. F., Chen, C., & Flett, G. L. (2014). Perfectionism, stress, daily hassles, hopelessness, and suicide potential in depressed psychiatric adolescents. Journal Of Psychopathology And Behavioral Assessment, doi:10.1007/s10862-014-9427-0

Casale, S., Fioravanti, G., Flett, G. L., & Hewitt, P. L. (2014). From socially prescribed perfectionism to problematic use of internet communicative services: The mediating roles of perceived social support and the fear of negative evaluation. Addictive Behaviors39(12), 1816-1822. doi:10.1016/j.addbeh.2014.06.006

Flett, G. L., & Hewitt, P. L. (2014). A proposed framework for preventing perfectionism and promoting resilience and mental health among vulnerable children and adolescents. Psychology In The Schools51(9), 899-912. doi:10.1002/pits.21792

Flett, G. L., Besser, A., & Hewitt, P. L. (2014). Perfectionism and interpersonal orientations in depression: An analysis of validation seeking and rejection sensitivity in a community sample of young adults. Psychiatry: Interpersonal And Biological Processes77(1), 67-85.

Flett, G. L., & Hewitt, P. L. (2013). Disguised distress in children and adolescents “flying under the radar”: Why psychological problems are underestimated and how schools must respond. Canadian Journal of School Psychology, 0829573512468845. doi: 10.1177/0829573512468845

Ayearst, L. E., Flett, G. L., & Hewitt, P. L. (2012). Where is multidimensional perfectionism in DSM-5? A question posed to the DSM-5 personality and personality disorders work group. Personality Disorders: Theory, Research, And Treatment3(4), 458-469. doi:10.1037/a0026354

Chen, C., Hewitt, P. L., , Flett, G. L., Cassles, T.G., Birch, S., Blasberg, J. S. (2012). Insecure attachment, perfectionistic self-presentation, and social disconnection in adolescents. Personality and Individual Differences, 52, 936-941.

Roxborough, H.M., Hewitt, P.L., Kaldas, J., Flett, G.L., Caelian, C., Sherry, S. & Sherry D. (2012). Perfectionistic self-presentation, socially prescribed perfectionism, and suicide in youth: A test of the perfectionism social disconnection Model. Suicide and Life Threatening Behavior, 42, 217-233.

Fitzpatrick, S., Sherry, S., Hartling, N., Hewitt, P. L., Flett, G. L., & Sherry, D. (2011).  Narcissism, perfectionism, and interest incosmetic surgery. Plastic and Reconstructive Surgery, 127, 176-177.

Flett, G.L., Baricza, C., Gupta, A., Hewitt, P. L., Endler, N.S. (2011). Perfectionism, Psychosocial Impact, and Coping with Irritable Bowel Disease: A Study of Patients with Crohn’s Disease and Ulcerative Colitis. Journal of Health Psychology, 16, 561-571.

Hewitt, P. L., Blasberg, J. S., Flett, G. L., Besser, Sherry, S. B., Caelian, C., Papsdorf, M., Cassels, T. G. & Birch, S. (2011). Perfectionistic self-presentation in children and adolescents: Development and validation of the Perfectionistic Self-Presentation Scale—Junior Form. Psychological Assessment, 23, 125-142.

Nepon, T., Flett, G. L., Hewitt, P. L., & Molnar, D. S. (2011). Perfectionism, negative social feedback, and interpersonal rumination in depression and social anxiety. Canadian Journal of Behavioural Science, 43, 297-308.

Besser, A., Flett, G.L., & Hewitt, P. L. (2010). Perfectionistic Self-Presentation and Trait Perfectionism in Social Problem-Solving Ability and Depressive Symptoms. Journal of Applied Social Psychology, 2010, 40, 2123–2156.

Sherry, S.B ., Hewitt, P.L., Sherry, D. L., Flett, G. L., Graham, A. R. (2010). Perfectionism dimensions and research productivity in psychology professors: Implications for understanding the (mal)adpativeness of perfectionism.  Canadian Journal of Behavioural Sciences, 42, 273-283.

Besser, A., Flett, G.L., Guez, J., & Hewitt, P.L. (2008). Perfectionism, mood, and memory for positive, negative, and perfectionistic content. Individual Differences Research, 6, 211-244.

Flett, G.L., & Hewitt, P. L. (2008). Treatment interventions for perfectionism: A cognitive perspective: Introduction to the special issue. Journal of Rational-Emotive and Cognitive-Behavior Therapy, 26, 127-133.

Hewitt, P. L., Habke, A. M., Lee-Baggley, D. L., Sherry, S. B., Flett, G. L. (2008). The impact of perfectionistic self-presentation on the cognitive, affective, and physiological experience of a clinical interview. Psychiatry: Interpersonal and Biological Processes, 71, 93- 122.

Sherry, S. B., Law, A., Hewitt, P. L., Flett, G. L., & Besser, A. (2008). Social support as a mediator of the relationship between perfectionism and depression: A preliminary test of the Social Disconnection Model. Personality and Individual Differences 26, 127-133.

Roxborough, H.M.,  Hewitt, P.L., Flett, G.l., Abisadeh, J. (2009). Borderline personality organization and the interpersonal components of perfectionism: A review of two overlapping personality pathologies. World Academy of Science, Engineering and Technology, 54, 1585-1592.

Sherry, S.B., Vriend, J.L., Hewitt, P.L., Sherry, D.L., Flett, G.L., & Wardrop, A.A. (2009). Perfectionism dimensions, appearance schemas, and body image disturbance in community members and university students. Body Image, 6, 83-89.

Stornelli, D., Flett, G. L., & Hewitt, P. L. (2009). Perfectionism, achievement, and affect in children: A comparison of students from gifted, arts, and regular programmes. Canadian Journal of School Psychology, 24, 267-283.

Flett, G. L., Besser, A. V., Hewitt, P. L., & Davis, R. A. (2007). Perfectionism, silencing the self, and depression. Personality and Individual Differences, 43, 1211-1222.

Hewitt, P.L., & Flett, G. L. (2007). When does conscientiousness become perfectionism?. Current Psychiatry, 6, 53-64.

Sherry, S. B., Hewitt, P. L., Flett, G. L., Lee-Baggley, D. L., & Hall, P. A. (2007). Trait perfectionism and perfectionistic self-presentation in personality pathology. Personality and Individual Differences, 42, 477-490.

Flett, G.L., & Hewitt, P. L. (2006). Positive versus negative aspects of perfectionism in psychopathology: A comment on Slade and Owen’s dual process model. Behavior Modification, 30, 11-24.

Sherry, S. B., Hewitt, P. L., Besser, A., Flett, G. L., & Klein, C. (2006). Machiavellianism, trait perfectionism, and perfectionistic self-presentation. Personality and Individual Differences, 40, 829-839.

Flett, G. L., Besser, A., & Hewitt, P.L. (2005).  Perfectionism, ego defense styles, and depression: A comparison of self-reports versus informant ratings. Journal of Personality, 73, 1355-1396.

McGee, B.J., Hewitt, P.L., Sherry, S.B., Parkin, M., & Flett, G.L. (2005). Perfectionistic self-presentation, body image, and eating disorder symptoms. Body Image, 2(1), 29-40.

Flett, G. L., & Hewitt, P. L. (2005). The perils of perfectionism in sports and exercise. Current Directions in Psychological Science, 14, 14-18.

Sherry, S. B., Hewitt, P. L., Lee-Baggley, D. L., Flett, G. L., & Besser, A. (2004). Perfectionism and thoughts about having cosmetic surgery performed. Journal of Applied Biobehavioral Research, 9, 244-257.

Besser, A., Flett, G. L., & Hewitt, P. L. (2004). Perfectionism, cognition, and affect in response to performance failure versus success. Journal of Rational-Emotive and Cognitive-Behavior Therapy, 22, 301-328.

Sherry, S. B., Hewitt, P. L., Besser, A., McGee, B. J., & Flett, G. L. (2004). Self-oriented and socially prescribed perfectionism in the Eating Disorder Inventory perfectionism subscale. International Journal of Eating Disorders, 35, 69-79.

Hewitt, P. L., Flett, G. L., Sherry, S. B., Habke, M., Parkin, M., Lam, R. W., et al. (2003). The interpersonal expression of perfectionism:  Perfectionistic self-presentation and psychological distress. Journal of Personality and Social Psychology, 84, 1303-1325.

Hewitt, P. L., Sherry, S. B., Flett, G. L., & Shick, R. (2003).  Perfectionism and cosmetic surgery.  Plastic and Reconstructive Surgery, 112(1), 346.

Heisel, M. J., Flett, G. L., & Hewitt, P. L. (2003). Social hopelessness and suicide ideation in college students. Archives of Suicide Research, 7, 221-235.

Hewitt, P. L., Flett, G L., Besser, A., Sherry, S. B., & McGee, B. (2003). Perfectionism Is Multidimensional:  A Reply to Shafran, Cooper, and Fairburn (2002). Behaviour Research and Therapy, 41, 1221-1236.

Haring, M., Hewitt, P. L., & Flett, G. L. (2003). Perfectionism, coping, and quality of intimate relationships. Journal of Marriage and the Family, 65, 143-158.

Hewitt, P. L., Caelian, C., Flett, G. L., Collins, L., & Flynn, C. (2002). Perfectionism in Children: Associations with Depression, Anxiety, and Anger. Personality and Individual Differences, 32, 1049-1061.

Flett, G. L., Madorsky, D., Hewitt, P. L., & Heisel, M. J. (2002). Perfectionism cognitions, rumination, and psychological distress. Rational-Emotive and Cognitive-Behavior Therapy, 20, 33-47.

Flett, G.L., Hewitt, P. L., Shapiro, B., Rayman, J. (2001). Perfectionism, beliefs, and adjustment in dating relationships. Current Psychology, 20, 289-311.

Hewitt, P. L., Coren, S., & Steel, D. G. (2001). Death from Anorexia Nervosa: Age span and gender differences. Aging and Mental Health, 5, 41-46.

Habke, A. M., Hewitt, P. L., & Flett, G. L. (1999). Perfectionism and sexual satisfaction in intimate relationships. Journal of Psychopathology and Behavior Assessment, 21, 307-322.

Coren, S., & Hewitt, P. L. (1999). Sex differences in elderly suicide rates: Some predictive factors. Aging and Mental Health, 3, 112-118.

Hewitt, P. L, Norton, G. R., Flett, G. L., Callander, L., & Cowan, T. (1998). Dimensions of Perfectionism, Hopelessness, and Attempted Suicide in a Sample of Alcoholics. Suicide and Life Threatening Behavior, 28, 395-406.

Hewitt, P. L., Flett, G. L., Flynn, C., Norton, G. R., & Ediger, E. (1998). Perfectionism in chronic and state symptoms of depression. Canadian Journal of Behavioural Sciences, 30, 234-242.

Flett, G. L., Hewitt, P. L., Blankstein, K. R., & Pickering, D. (1998). Perfectionism and attributions for success and failure. Current Psychology, 17, 249-262.

Coren, S. & Hewitt, P. L. (1998). Is Anorexia Nervosa associated with elevated rates of suicide? American Journal of Public Health, 88, 1206-1207.

Flett, G. L., Hewitt, P. L., & Blankstein, K., & Gray, L.  (1998). Frequency of perfectionistic thinking in depression. Journal of Personality and Social Psychology, 75, 1363-1381.

Nielsen, A. D., Hewitt, P. L., Habke, A. M. (1997). Borderline and Schizophrenic patients: A comparison using the MCMI-II. Journal of Psychopathology and Behavior Assessment, 19, 303-313.

Habke, M., Hewitt, P. L, Norton, G. R., & Asmundson, G. (1997). The Social Phobia and Social Interaction Anxiety Scales:  An exploration of the dimensions of social anxiety and sex differences in structure and relations with pathology.  Journal of Psychopathology and Behavior Assessment, 19, 21-39.

Hewitt, P. L., Newton, J., Flett, G. L., & Callander, L. (1997). Perfectionism and Suicide Ideation in Adolescent Psychiatric Patients. Journal of Abnormal Child Psychology, 25, 95-101.

Flett, G. L., Hewitt, P. L., Garshowitz, M., & Martin, T. R. (1997). Personality, negative social interactions, and depressive symptoms. Canadian Journal of Behavioural Science, 29, 28-37.

Hewitt, P. L., Flett, G. L., & Ediger, E. (1996). Perfectionism and depression: Longitudinal assessment of a specific vulnerability hypothesis. Journal of Abnormal Psychology, 105, 276-280.

Flett, G. L., Hewitt, P. L., Blankstein, K. R., Solnik, M., & Van Brunschot, M. (1996). Perfectionism, social problem‑solving ability, and psychological distress. Journal of Rational‑Emotive and Cognitive‑Behavior Therapy, 14, 245-275.

Norton, G. R.,  McLeod,  L., Guertin, J., Hewitt, P. L., Walker, J. R., & Stein, M. B. (1996). Panic disorder or social phobia: Which is worse. Behaviour Therapy and Research, 34, 273-276.

Hewitt, P. L., Flett, G. L., & Ediger, E. (1995). Perfectionism traits and perfectionistic self-presentation in eating disorder attitudes, characteristics, and symptoms. International Journal of Eating Disorders, 18, 317-326.

Mor, S., Flett, G. L., Day, H. & Hewitt, P. L. (1995). Perfectionism, control, and components of performance stress in professional artists. Cognitive Therapy and Research, 19, 207-226.

Hewitt, P. L., Flett, G. L., & Mikail, S. (1995). Perfectionism and relationship maladjustment in chronic pain patients and their spouses. Journal of Family Psychology, 9, 335-347.

Hewitt, P. L., Flett, G. L., & Endler, N. S. (1995). Perfectionism, coping, and Depression Symptomatology in a Clinical Sample. Clinical Psychology and Psychotherapy, 2, 47-58.

Flett, G. L., Hewitt, P. L., & Singer, A. (1995). Perfectionism and parental authority styles. Individual Psychology, 51, 50-60.

Flett, G.L., Hewitt, P.L., & Hallett, J. (1995). Perfectionism and job stress in teachers. Canadian Journal of School Psychology, 11, 32-42.

Hewitt, P. L., Flett, G. L., & Weber, C. (1994). Perfectionism and suicide ideation. Cognitive Therapy and Research, 18, 439-460.

Hewitt, P. L., Flett, G. L., & Turnbull, W. (1994). Borderline personality disorder: An investigation with the Multidimensional Perfectionism Scale. European Journal of Psychological Assessment, 10, 28-33.

Flett, G. L., Hewitt, P. L., Blankstein, K. R., & Dynin, C. B (1994). Dimensions of perfectionism and Type A Behaviour. Personality and Individual Differences, 16, 477-485.

Hewitt, P. L., & Norton, G. R. (1993). The Beck Anxiety Inventory: A psychometric analysis. Psychological Assessment: A Journal of Consulting and Clinical Psychology, 5, 408-412.

Hewitt, P. L., & Flett, G. L. (1993). Dimensions of Perfectionism, Daily Stress, and Depression: A Test of the Specific Vulnerability Hypothesis.  Journal of Abnormal Psychology, 102, 58-65.

Blankstein, K. R., Flett, G. L., Hewitt, P. L., & Eng, A. (1993). Dimensions of Perfectionism and Irrational Fears: An Examination with the Fear Survey Schedule. Personality and Individual Differences, 15, 323-328.

Hewitt, P. L.,  Flett, G. L., & Turnbull W. (1992). Perfectionism and MMPI indices of personality disorders. Journal of Psychopathology and Behavior Assessment, 14, 323-335.

Hewitt, P. L., Flett, G. L., & Mosher, S. (1992). The Perceived Stress Scale:  Factor structure and relation to depression. Journal of Psychopathology and Behavioral Assessment, 14, 247-257.

Hewitt, P. L., Flett, G. L., & Turnbull-Donovan, W. (1992). Perfectionism and suicide potential. British Journal of Clinical Psychology, 31, 181-190.

Flett, G. L., Blankstein, K., Hewitt, P. L., & Koledin, S. (1992). Components of perfectionism and procrastination in college students. Social Behavior and Personality, 20, 85-94.

Hewitt, P. L., & Flett, G. L. (1991). Dimensions of perfectionism in unipolar depression. Journal of Abnormal Psychology, 100, 98-101.

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

Hewitt, P. L., Flett, G. L., Turnbull-Donovan, W., & Mikail, S. (1991). The Multidimensional Perfectionism Scale:  Reliability, validity, and psychometric properties in psychiatric samples. Psychological Assessment: A Journal of Consulting and Clinical Psychology, 3, 464-468.

Hewitt, P. L., Flett, G. L., & Blankstein, K. (1991). Perfectionism and neuroticism in psychiatric patients and college students. Personality and Individual Differences, 12, 273-279.

Flett, G. L., Hewitt, P. L., Blankstein, K. R., & O’Brien, S. (1991). Perfectionism and learned re-sourcefulness in depression and self-esteem. Personality and Individual Differences, 12, 61-68.

Hewitt, P. L. & Genest, M. (1990). Ideal-self: Schematic processing of perfectionistic content in dysphoric university students. Journal of Personality and Social Psychology, 59, 802-808.

Hewitt, P. L. & Flett, G. L. (1990). Perfectionism and depression: A multidimensional analysis. Journal of Social Behavior and Personality, 5, 423-428.

Hewitt, P. L., Mittelstaedt, W., & Flett, G. L. (1990). Self-Oriented Perfectionism and Generalized Performance Importance in Depression. Individual Psychology, 46, 67-73.

Hewitt, P. L., Mittelstaedt, W. & Wollert, R. (1989). Validation of a measure of perfectionism. Journal of Personality Assessment, 53, 133-144.

Flett, G. L., Hewitt, P. L., & Dyck, D. G. (1989). Self-oriented perfectionism, neuroticism, and anxiety. Personality and Individual Differences, 10, 731-735.

Hewitt, P. L. & Dyck, D. G. (1986). Perfectionism, stress and vulnerability to depression. Cognitive Therapy and Research, 10, 137-142.