Recent Publications


Journal Articles – Advance Online Publication


  1. Kolla, N.J., Boileau, I. & Bagby, R.M. (2022). Higher trait neuroticism is associated with greater fatty acid amide hydrolase binding in borderline and antisocial personality disorders.Scientific Reports, 12
  2. Lepock, J. R., Mizrahi, R., Gerritsen, C. J., Bagby, R. M., Maheandiran, M., Ahmed, S., … & Kiang, M. (2022). N400 event‐related brain potential and functional outcome in persons at clinical high risk for psychosis: a longitudinal study.Psychiatry and Clinical Neurosciences.
  3. Miller, J.D., Bagby, R.M., Hopwood, C.J., Simms, L.J., & Lynam, D.R. (2022). Normative data for PID-5 domains, facets, and personality disorder composites from a representative sample and comparison to community and clinical samples. Personality Disorders: Theory, Research, and Treatment.


  1. Asadi, S., Bagby, R.M., Krueger, R.F., Pollock, B.G., & Quilty, L.C. (2021). Reliability and Construct Validity of the General Factor of Personality Disorder. Personality Disorders: Theory, Research, and Treatment. Advance online publication.
  2. Bagby, R.M., Sanches, M., Carnovale, M., Taylor, G.J. (2021). An evaluation of alexithymia subtypes using latent profile analysis. Psychiatry Research, 299, 113840.
  3. Bagby, R.M., Parker, J.D.A., Onno, K. A., Mortezaei, A., Taylor, G.J. (2021). Development and psychometric evaluation of an informant form of the 20-item Toronto Alexithymia Scale. Journal of Psychosomatic Research, 141, 110329.
  4. Driessen, E., Cohen, Z. D., Weissman, M. M., Markowitz, J. C., Weitz, E. S., Hollon, S. D., . . . Cuijpers, P. (2021). The efficacy of antidepressant medication and interpersonal psychotherapy for adult acute-phase depression: Study protocol of a systematic review and meta-analysis of individual participant data.BJPsych Open, 7(2).
  5. Kolla, N.J., Karas, K., Bagby, R.M., Boileau, I., Rusjan, P., & Houle, S. (in press).  Cortex fatty acid amide hydrolase expression is correlated with trait neuroticism in borderline personality disorder and antisocial personality disorder: An [11C]CURB positron emission tomography investigation.Scientific Reports.
  6. Longenecker J.M., George T.P., Voore P., Bagby R.M., McKenzie K., Pollock B.G., Quilty L.C. (2021). Cross-cutting symptom domains predict functioning in psychotic disorders.Journal of Clinical Psychiatry, 82(2), 28267.
  7. Zaso, M. J., Hendershot, C. S., Wardell, J. D., Bagby, R. M., Pollock, B. G., & Quilty, L. C. (2021). Characterizing the role of impaired control over alcohol in associations of impulsive personality traits with alcohol use across mood disorders. Addictive Behaviors, 112, 106633.
  8. Zheng, S., Stewart, J.G., Bagby, R.M., & Harkness, K.L. (2021). Specific Early Maladaptive Schemas Differentially Mediate the Relations of Emotional and Sexual Maltreatment to Recent Life Events in Youth with Depression. Clinical Psychology & Psychotherapy.


  1. Bagby, R.M., Parker, J.D.A., & Taylor, G.J. (2020). Twenty-five years with the Toronto Alexithymia Scale. Journal of Psychosomatic Research, 131, 109940.
  2. Gerritsen, C., Iyengar, Y., DaSilva, T., Koppel, A., Rusjan, P., Bagby, R.M., Mizrahi, R. (2020). Personality traits in psychosis risk linked to TPSO expression – a neuroimmune marker.Personality Neuroscience, 3.

Journal Articles – Published


  1. Bagby, R. M., Keeley, J. W., Williams, C. C., Mortezaei, A., Ryder, A. G., & Sellbom, M. (2022). Evaluating the measurement invariance of the Personality Inventory for DSM-5 (PID-5) in Black Americans and White Americans. Psychological Assessment, 34(1), 82–90.
  2. Watson, D., Forbes, M.K., Levin-Aspenson, H.F., Ruggero, C.J., Kotelnikova, Y., Khoo, S., Bagby, R.M., Sunderland, M., Patalay, P., & Kotov, R. (2022). The development of a preliminary HiTOP internalizing spectrum scale. Assessment, 29(1), 17-33.


  1. Ahmed, S., Lepock, J. R., Mizrahi, R., Bagby, R. M., Gerritsen, C. J., Korostil, M., … & Kiang, M. (2021). Decreased Gamma Auditory Steady-State Response Is Associated with Impaired Real-World Functioning in Unmedicated Patients at Clinical High Risk for Psychosis. Clinical EEG and Neuroscience52(6), 400-405.
  2. Burchett, D.L., & Bagby, R.M. (2021). Assessing Negative Response Bias: A Review of the Noncredible Overreporting Scales of the MMPI-2-RF and MMPI-3. Psychological Injury and Law, 1-15.
  3. Carnovale, M., Taylor, G. J., Parker, J., Sanches, M., & Bagby, R. M. (2021). A bifactor analysis of the 20-item Toronto Alexithymia Scale: Further support for a general alexithymia factor.Psychological Assessment33(7), 619–628.
  4. Drvaric, L., & Bagby, R. M. (2021). The association of pathological and “normal-range” personality traits with psychotic-like experiences in a general population sample.Personality Disorders: Theory, Research, and Treatment, 12(2), 93-102.
  5. Quilty, L. C., Bagby, R. M., Krueger, R. F., & Pollock, B. G. (2021). Validation of DSM-5 clinician-rated measures of personality pathology.Psychological Assessment, 33(1), 84-89.
  6. Quilty, L.C., Otis, E., Allen, S., & Bagby, R.M. (2021). A multi-method investigation of normative and pathological personality across the spectrum of gambling involvement. Journal of Gambling Studies, 1-19.
  7. Taylor, G. J., & Bagby, R. M. (2021).Examining proposed changes to the conceptualization of the alexithymia construct: The way forward tilts to the past. Psychotherapy and Psychosomatics, 90, 145-155.


  1. Allen, T. A., DeYoung, C. G., Bagby, R. M., Pollock, B. G., & Quilty, L. C. (2020). A Hierarchical Integration of Normal and Abnormal Personality Dimensions: Structure and Predictive Validity in a Heterogeneous Sample of Psychiatric Outpatients.Assessment27(4), 643–656.
  2. Bagby, R. M., Onno, K. A., Mortezaei, A., & Sellbom, M. (2020). Examining the “traditional background hypothesis” for the MMPI-2–RF L-r scores in a muslim faith–based sample.Psychological Assessment, 32(10), 991-995.
  3. Bagby, R. M., Parker, J. D. A., & Taylor, G. J. (2020). Twenty-five years with the 20-item toronto alexithymia scale.Journal of Psychosomatic Research, 131, 12.
  4. Bagby, R.M., & Widiger, T. A. (2020). Assessment of the ICD-11 dimensional trait model: An introduction to the special section. Psychological Assessment, 32(1), 1–7.
  5. Carnovale, M., Sellbom, M., & Bagby, R.M. (2020). The Personality Inventory for ICD-11: Investigating reliability, structural and concurrent validity, and method variance. Psychological Assessment, 32(1), 8–17.
  6. Gerritsen, C., Maheandrian, M., Lepock, J., Ahmed, S., Kiang, M., Bagby, R.M., & Mizrahi, R. (2020). Negative symptoms in the clinical high risk state for psychosis: Connection with cognition and primacy in impacting functioning. Early Intervention Psychiatry, 14(2), 188-195.
  7. Hopwood, C. J., Bagby, R. M., Gralnick, T., Ro, E., Ruggero, C., Mullins-Sweatt, S., . . . Zimmermann, J. (2020). Integrating psychotherapy with the hierarchical taxonomy of psychopathology (HiTOP).Journal of Psychotherapy Integration, 30(4), 477-497.
  8. Kolla, N. J., Mizrahi, R., Karas, K., Wang, C., Bagby, R. M., McMain, S., . . . Boileau, I. (2020). Elevated fatty acid amide hydrolase in the prefrontal cortex of borderline personality disorder: A [¹¹C]CURB positron emission tomography study.Neuropsychopharmacology, 45(11), 1834-1841.
  9. Lepock, J.R., Ahmed, S., Mizrahi, R., Gerritsen, C., Maheandrian, M., Bagby, R.M., Korostil, M., & Kiang M. (2020). N400 event‐related brain potential as an index of real‐world and neurocognitive function in patients at clinical high risk for schizophrenia. Early Intervention Psychiatry, 1-8.
  10. Solomon-Krakus, S., Uliaszek, A. A., & Bagby, R. M. (2020). Evaluating the associations between personality psychopathology and heterogeneous eating disorder behaviors: A dimensional approach.Personality Disorders: Theory, Research, and Treatment, 11(4), 249-259.
  11. Sellbom, M., Solomon-Krakus, S., Bach, B., & Bagby, R.M. (2020). Validation of Personality Inventory for DSM–5 (PID-5) algorithms to assess ICD-11 personality trait domains in a psychiatric sample. Psychological Assessment, 32(1), 40–49.
  12. Sellbom, M., Brown, T.A., & Bagby, R.M. (2020). Validation of MMPI-2–RF Personality Disorder Spectra scales in a psychiatric sample. Psychological Assessment, 32(3), 314–320.
  13. Vallati, M., Cunningham, S., Mazurka, R., Stewart, J. G., Larocque, C., Milev, R. V., . . . Harkness, K. L. (2020). Childhood maltreatment and the clinical characteristics of major depressive disorder in adolescence and adulthood. Journal of Abnormal Psychology,129(5), 469-479.


  1. Carnovale, M., Carlson, E.N., Quility, L.C., & Bagby, R.M. (2019). Discrepancies in self- and informant-reports of personality pathology: Examining the DSM-5 Section III trait model. Personality Disorders: Theory, Research, and Treatment, 10(5), 456-467. doi:10.1037/per0000342
  2. Conway, C.C., Forbes, M.K., Forbush, K.T., Fried, E.I., Hallquist, M. N., Kotov, R., … Eaton, N.R. (2019). A Hierarchical Taxonomy of Psychopathology Can Transform Mental Health Research. Perspectives on Psychological Science, 14(3), 419–436.
  3. Cunningham, S., Goff, C., Bagby, R.M., Stewart, J.G., Larocque, C., Mazurka, R., Ravindran, A., & Harkness, K.L. (2019). Maternal- versus paternal-perpetrated maltreatment and risk for sexual and peer bullying revictimization in young women with depression. Child Abuse & Neglect, 89, 111-121.
  4. Fournier, J.C., Wright, A., Tackett, J.L., Uliaszek, A., Pilkonis, P.A., Manuck, S.B., Bagby, R.M. (2019). Decoupling personality and acute psychiatric symptoms in a depressed and a community sample. Clinical Psychological Science, 7(3), 566-581.
  5. Gerritsen, C., Bagby, R.M., Sanchez, M., Kiang, M., Maheandrian, M., Prce, I., & Mizrahi, R. (2019). Stress precedes negative symptom exacerbations in clinical high risk and early psychosis: A time-lagged experience sampling study. Schizophrenia Research, 210, 52-58.
  6. Hopwood, C.J., Krueger, R.F., Watson, D., Widiger, T.A., Althoff, R.R., Ansell, E.B., Bach, B., Bagby, R.M., et al. (2019). Comment on “The challenge of transforming the diagnostic system for personality disorders”. Journal of Personality Disorders, 33(4), 1-4.
  7. Keefer, K.V., Taylor, G.J., Parker, J.D.A., & Bagby, R.M. (2019). Taxometric analysis of the Toronto Structured Interview for Alexithymia: Further evidence that alexithymia is a dimensional construct. Assessment, 26(3), 364-374.
  8. Lepock, J. R., Mizrahi, R., Korostil, M., Maheandiran, M., Gerritsen, C. J., Drvaric, L., Ahmed, S., Bagby, R. M., & Kiang, M. (2019). N400 event-related brain potential evidence for semantic priming deficits in persons at clinical high risk for psychosis.Schizophrenia Research204, 434–436.
  9. Moriguchi, S., Wilson, A.A., Miler, L., Rusjan, P.M., Vasdev, N., Kish, S.J., Rajkowska, G., Wang, J., Bagby, R.M., Mizrahi, R., Varughese, B., Houle, S., & Meyer, J.H. (2019). Monoamine Oxidase B total distribution volume in the prefrontal cortex of major depressive disorder An [11C]SL25.1188 Positron Emission Tomography study.JAMA Psychiatry, 76(6), 634-641. doi: 10.1001/jamapsychiatry.2019.0044.
  10. Quigley, L., Dozois, D.J., Bagby, R.M., Lobo, D.S.S., Ravindran, L., & Quilty, L.C. (2019). Cognitive change in cognitive behavioural therapy versus pharmacotherapy for adult depression: A longitudinal mediation analysis. Psychological Medicine, 49(15), 2626-2634.
  11. Ruggero, C.J., Kotov, R., Hopwood, C.J., First, M., Clark, L.A., Skodol, A.E.,…Zimmermann, J. (2019). Integrating the hierarchical taxonomy of psychopathology (HiTOP) into clinical practice. Journal of Consulting and Clinical Psychology, 87(12), 1069-1084. doi:
  12. Thiruchselvam, T., Dozois, D., Bagby, R.M., Lobo, D. S. S., Ravindran, L., & Quilty, L.C. (2019). The role of outcome expectancy in therapeutic change across psychotherapy versus pharmacotherapy. Journal of Affective Disorders, 251, 121-129.
  13. Uliaszek A.A., Al-Dajani, N., Sellbom, M., & Bagby, R.M. (2019). Cross-validation of the demoralization construct in the Revised NEO Personality Inventory. Psychological Assessment, 31(2), 159-166. doi:10.1037/pas0000655
  14. Watters, C. A., Bagby, R. M., Uliaszek A. A., & Sellbom, M. (2019). Clarifying the interstitial nature of facets from the Personality Inventory for DSM-5 using the five factor model of personality. Personality Disorders: Theory, Research and Treatment, 10(4), 330-339. doi: 10.1037/per0000327
  15. Watters, C.A., Bagby, R.M., & Sellbom, M. (2019). Meta-analysis to derive an empirically based set of personality facet criteria for the alternative DSM-5 model for personality disorders. Personality Disorders: Theory, Research, and Treatment, 10(2), 97-104.
  16. Watters, C.A., Sellbom, M., & Bagby, R.M. (2019). Comparing two domain scoring methods for the Personality Inventory for DSM–5. Psychological Assessment, 31(9), 1125-1134.
  17. Watters, C.A., Taylor, G. J., Ayearst, L. E., & Bagby, R.M. (2019). Measurement invariance of English and French language versions of the 20-item Toronto Alexithymia Scale. European Journal of Psychological Assessment, 35(1), 29-36.


  1. Allen, T.A., Carey, B.E., McBride, C., Bagby, R.M., DeYoung, C.G., & Quilty, L.C. (2018). Big Five Aspects of Personality Interact to Predict Depression. Journal of Personality, 86, 714–725.
  2. Bagby, R.M., & Sellbom, M. (2018). The validity and clinical utility of the Personality Inventory for DSM-5 (PID-5) response inconsistency scale. Journal of Personality Assessment, 100(4), 398-405.
  3. Bagby, R.M. & Widiger, T.A. (2018). Five Factor model personality disorder scales: An introduction to a special section on assessment of maladaptive variants of the Five Factor model. Psychological Assessment, 30(1), 1-9.
  4. Da Silva, T., Hafizi, S., Andreazza, A.C., Kiang, M., Bagby, R.M., Navas, E., Laksono, I., Truong, P., Gerritsen, C., Prce, I., Sailasuta, N., & Mizrahi, R. (2018). Glutathione –the major redox regulator- in the prefrontal cortex of individuals at clinical high risk for psychosis. International Journal of Neuropsychopharmacology, 21(4), 311-318.
  5. Drvaric, L., Bagby, Kiang, M., & Mizrahi, R. (2018). Maladaptive personality traits in patients identified at lower-risk and higher-risk for psychosis. Psychiatry Research, 268, 348-353.
  6. Gerritsen, C.J., Chmielewski, M., Zakzanis, K., & Bagby, R.M. (2018). Examining the dimensions of schizotypy from the top down: A hierarchical comparison of factor solutions. Personality Disorders: Theory, Research and Treatment, 9(5), 467-477.
  7. Health, L.M., Drvaric, L., Hendershot, C.S., Quilty, L.C., & Bagby, R.M. (2018). Normative and maladaptive personality test models of mood, psychotic and substance use disorders. Journal of Psychopathology and Behavioral Assessment, 40(4), 606-613.
  8. Hopwood, C.J., Krueger, R.F., Watson, D., Widiger, T.A., Althoff, R.R., Ansell, E.B., Bach, B., Bagby, R.M., et al. (2018). Comment on “The challenge of transforming the diagnostic system for personality disorders”. Journal of Personality Disorders, 33(4), 1-4.
  9. Hopwood, C.J. Bagby, R.M., et al. (2018). The time has come for dimensional personality diagnosis. Personality and Mental Health, 12, 82-86.
  10. Keough, M.T., Hendershot, C.S., Wardell, J.D., & Bagby, R. M. (2018). Investigating the Mediational Role of Negative Urgency in the Anxiety Pathway to Cannabis Problems and Dependence among Postsecondary Students. Journal of American College Health, 66(2), 69–75.
  11. Keough, M.T., Penniston, T.L., Vilhena-Churchill, Bagby, R.M., & Quilty, L.C. (2018). Depression symptoms and reasons for gambling sequentially mediate the associations between insecure attachment styles and problem gambling. Addictive Behaviors, 78, 166-172.
  12. Krueger, R.F., Bagby, R.M., et al. (2018). Progress in achieving empirical classifications of psychopathology. World Psychiatry, 17(3), 282-293.
  13. Lepock, J.R., Mizrahi, R., Korostil, M., Bagby, R.M., Pang, E.W., & Kiang, M. (2018). Event-related potentials in the clinical high-risk (CHR) state for psychosis: A systematic review. Clinical EEG and Neuroscience, 49(4), 215-225.
  14. Noordhof, A., Kamphuis, J.H., Sellbom, M., Eigenhuis, A., Bagby, R.M. (2018). Change in self-reported personality during major depressive disorder treatment: A reanalysis of treatment studies from a demoralization perspective. Personality Disorders: Theory, Research, and Treatment, 9(1), 93-100.
  15. Quilty, L.C., Cosentino, N.A., & Bagby, R.M. (2018). Response bias and the Personality Inventory for DSM-5: Contrasting self- and informant-report. Personality Disorders: Theory, Research and Treatment, 9(4), 346-353.
  16. Quitasol, M.N, Fournier, M.A., Di Domenico, S.I., Bagby, R.M., & Quilty, L.C. (2018). Changes in psychological need fulfillment over the course of treatment for major depressive disorder. Journal of Social and Clinical Psychology, 37(5), 381-403.
  17. Rnic, K., Sabbagh, M.A., Washburn, D., Bagby, R.M., Ravindran, A., Kennedy, J. L., Strauss, J., & Harkness, K.L. (2018). Childhood emotional abuse, physical abuse, and neglect are associated with theory of mind decoding accuracy in young adults with depression. Psychiatry Research, 268, 501-507.
  18. Sekely, A., Taylor, G.J., Bagby, R.M. (2018). Developing a short version of the Toronto Structured Interview for Alexithymia. Psychiatry Research, 266, 218-227
  19. Sellbom, M., Dhillon, S., & Bagby, R.M. (2018). Development and validation of an over-reporting scale for the Personality Inventory for DSM-5. Psychological Assessment, 30(5), 582-593.
  20. Shakory, S., Watts, J. J., Hafizi, S., Da Silva, T., Khan, S., Kiang, M., Bagby, R. M., Chavez, S., & Mizrahi, R. (2018). Hippocampal glutamate metabolites and glial activation in clinical high risk and first episode psychosis. 43, 2249-2255.
  21. Watters, C. A., & Bagby, R. M. (2018). A meta-analysis of the five-factor internal structure of the Personality Inventory for DSM-5. Psychological Assessment, 30(9), 1255-1260.