John L. McNulty


Department ChairAssociate Professor of PsychologyLorton Hall 307A

Dr. John L. McNulty graduated from the University of Tulsa in 1995 with a PhD in clinical psychology. Prior to returning to TU in the fall of 1999, he completed post-doctoral training at Kent State University, specializing in personality assessment. He has authored or co-authored numerous articles or book chapters, and co-authored a book with John R. Graham and Yossef S. Ben-Porath on the interpretation of the Minnesota Multiphasic Personality Inventory - 2nd Edition (MMPI-2), the most widely used personality assessment instrument in the world. Dr. McNulty received the 2003 Society for Personality Assessment Samuel J. and Anne G. Beck Award for outstanding early career research in the field of personality assessment.

In addition to personality assessment, Dr. McNulty has collaborated with Dr. Allan Harkness, also at TU, in developing a dimensional model of personality named the Personality Psychopathology Five (PSY-5). With Y.S. Ben-Porath, they developed scales to assess the model that have been included with the MMPI-2 and are routinely reported and used by clinicians.

With Dr. Allan Harkness in the Department of Psychology, and Dr. William Potter and Dr. Robert Sheaff in the Department of Chemistry, Dr. McNulty co-founded the interdisciplinary Institute for Biological and Psychological Study of Individual Differences (IPBID). As the name suggests, institute members are involved in the exciting development of fundamental theories about the nature of the behavioral systems that structure and guide adaptive behavior.

Education and Degrees Earned

  • Doctor of Philosophy, Clinical Psychology, The University of Tulsa, 1995
  • Masters of Business Administration, The University of Oklahoma, 1980
  • Bachelor of Accoutancy, The University of Oklahoma, 1977

Previous Teaching Experience

  • Dr. McNulty taught courses in assessment while conducting his post-doctoral training at Kent State University

Professional Affiliations

  • Association for Psychological Science
  • Society for Personality Assessment

Courses Taught at TU

  • Assessment of Individual Differences (Psy 3023)
  • Clinical Assessment Personality (Psy 7193)
  • Critical Thinking in Psychology Lies and Damn Lies (Psy 2273)
  • First Year Experience (AS 1001)
  • Psychometrics (Psy 7053)
  • Research methods in Applied Psychology (Psy 7343)
  • Theories of Personality (Psy 4003)

Awards & Recognition

  • Samuel J. and Anne G. Beck Award – 2003. Presented by the Society for Personality Assessment in association with the University of Chicago Department of Psychology for excellence in early career research.


  • Harkness, A.R., & McNulty, J.L. (2006). An overview of personality: The MMPI-2 Personality Psychopathology Five Scales. In James N. Butcher (Ed.), MMPI-2: A practitioner’s guide (pp. 73-97). Washington, DC: American Psychological Association.

  • Kamphuis, J.H., Arbisi, P.A., Ben-Porath, Y.S., & McNulty, J.L. (in press). Detecting comorbid axis-II status among inpatients using the MMPI-2 Restructured Clinical scales. European Journal of Psychological Assessment.

  • Sellbom, M., Ben-Porath, Y.S., McNulty, J.L., Arbisi, P.A., & Graham, J.R. (2006). Elevation differences between MMPI-2 clinical and restructured clinical (rc) scales: Frequency, origins, and interpretive implications. Assessment, 13, 430-441.

  • Tellegen A., Ben-Porath, Y.S., Sellbom, M., Arbisi, P.A., McNulty, J.L., & Graham, J.R. (2006). Further evidence on the validity of the MMPI-2 restructured clinical (RC) scales: Addressing questions raised by Rogers, Sewell, Harrison, and Gordon and Nichols. Journal of Personality Assessment., 87, 148-171

  • Harkness, A. R., & McNulty, J. L. (2002). Implications of personality individual differences science for clinical work on personality disorders. P. T. Costa, Jr. & T. A. Widiger (Eds.) Personality disorders and the five-factor model of personality (2nd Ed.) (pp. 391-403). Washington, DC: American Psychological Association.

  • Graham, J.R., Ben-Porath, Y.S., & McNulty, J.L. (1999). MMPI-2 correlates for outpatient community mental health settings. Minneapolis: University of Minnesota Press.

  • McNulty, J.L. & Harkness, A.R., (2002). The MMPI-2 PSY-5 scales and the Five Factor Model. In Bole De Raad and Marco Perugini (Eds.), Big Five Assessment. (pp.435-456). Seattle: Hogrefe & Huber.

  • Arbisi, P.A., Ben-Porath, Y.S., & McNulty, J.L. (2006). The ability of the MMPI-2 to detect feigned PTSD within the context of compensation seeking. Psychological Services, 3, 249-261.