Nathan Weed


Nathan Weed received his Ph.D. in Clinical Psychology from the University of Minnesota in 1992. He joined the CMU faculty in 2001 after nine years on the clinical psychology faculty at the University of Mississippi. His chief teaching, research, and clinical interests are in the area of clinical psychological assessment. He directs a psychological assessment research laboratory and a specialty training clinic  Psycho​logical Assessment Clinic (PAC) devoted to psychological assessment. Dr. Weed is  Associate Editor of Psychological Assessment, published by the American Psychological Association, a Consulting Editor for Assessment, published by Sage, and for the Journal of Personality Assessment, published by Taylor & Francis.

Research Interests:

My research centers on problems in construction and validation of psychological assessments, particularly those involving the assessment of personality and psychopathology. Recent scale construction projects have included the development and validation of MMPI-2 scales used to: (1) screen for substance abuse problems, (2) identify symptoms associated with Attention Deficit Hyperactivity Disorder, and (3) assess features of the Korean culture-bound syndrome of Hwa-Byung. Recent validation studies include examinations of: (1) the relative validity of commercially available computer-based test interpretations, (2) the utility of the MMPI-2 PSY-5 scales as measures of dispositional coping, and (3) the field reliability of clinical MMPI-2 interpretation. Many of my current projects apply a novel q-sort methodology to validate personality test inferences.

Peer reviewed journal articles:

Han, K., Park, H., Weed, N. C., Lim, J., Johnson, A., & Joles, C. (in press). Gender differences on the MMPI across American and Korean adult and adolescent normative samples. Journal of Personality Assessment

Cox, A. C., Pant, H., Gilson, A. N., Rodriguez, J. S., Young, K. R., Kwon, S., & Weed, N. C. (2012). Effects of augmenting response options on MMPI-2 RC Scale psychometrics. Journal of Personality Assessment, 94, 613-619.

Hoerger, M., Quirk, S. W., & Weed, N. C. (2011). Development and validation of the delaying gratification inventory.  Psychological Assessment, 23, 725-738.

Ketterer, H., Han, K., & Weed, N. C. (2010). Validation of a Korean MMPI-2 Hwa-Byung scale using a Korean normative sample.  Cultural Diversity and Ethnic Minority Psychology, 16, 379-385.

Han, K., Burns, G. N., Weed, N. C., Hatchett, G. T., & Kurokawa, N. K. S. (2009). Evaluation of an observer form of the Coping Inventory for Stressful Situations (CISS). Educational and Psychological Measurement, 69, 675-695.

Chung, J., Weed, N. C., & Han, K. (2006). Evaluating cross-cultural equivalence of the Korean MMPI-2 via bilingual test-retest. International Journal of Intercultural Relations, 30, 531-543.

Roberts, M. E., Han, K., & Weed, N. C. (2006). Construction of an MMPI-2 scale to assess Hwa-Byung, a Korean culture-bound syndrome. Transcultural Psychiatry, 43, 383-401.

Weed, N. C. (2006). Syndromal complexity, paradigm shifts, and the future of validation research: Comments on Nichols and Rogers, Sewell, Harrison, and Jordan. Journal of Personality Assessment, 87, 230-235.