William J. and Dorothy K. O’Neill Professor of Psychology

Ph.D., University of Minnesota




Dr. Clark is a clinical psychologist recruited from the University of Iowa (1993-2010), where she had served as Director of Clinical Training and received the Iowa Regents’ Award for Faculty Excellence in 2006. Her research focuses on the assessment of personality disorder, for which she developed the Schedule for Nonadaptive and Adaptive Personality (SNAP), a psychological test that measures personality traits across the normal-abnormal spectrum. She is widely published and is one of the Institute for Scientific Information (ISI)’s “most highly cited” psychologists. She is one of 9 members of the Work Group to revise the Personality and Personality Disorders section of the DSM-5, the widely used diagnostic and classification system of mental disorders of the American Psychiatric Association, and also served on several cross-cutting Study Groups for the DSM revision.

Professor Clark’s primary research focus is the assessment of personality traits across the adaptive-maladaptive spectrum and the diagnosis of personality disorder. Her current research, funded by the National Institute of Mental Health, aims to identify the core elements of personality pathology and psychosocial disability that are needed to diagnose personality disorder. In particular, her research involves increasing our understanding of (1) the specific traits that comprise each of the major domains of personality (e.g., social withdrawal and reduced capacity for pleasure are components of the broad domain of Detachment vs. Extraversion); (2) determining the core deficits in identity and interpersonal relationships that underlie personality disorder and exploring how to assess these elements independently of personality traits; and (3) deepening our understanding of—and ability to assess—psychosocial dysfunction in relation to personality dysfunction.

Recent Publications (* = my students during data collection / manuscript preparation)

Calabrese, W. R., Rudick, M. M., Simms, L. J., & Clark, L. A. (in press). Development and 
validation of Big-Four scales for the Schedule for Nonadaptive and Adaptive Personality-
2nd Edition (SNAP-2). Psychological Assessment. doi: 10.1037/a0026915
Latzman, R. D., Lilienfeld, S. O., Latzman, N. E., & Clark, L. A. (in press). Exploring 
callous and unemotional traits in youth via general personality traits: An eye towards 
DSM-5. Personality Disorders: Theory, Research, & Treatment. doi: 10.1037/a0000001
*Sharma, L., Kohl, K., Morgan, T. A., & Clark, L. A. (in press). “Impulsivity”: Relations 
between self-report and behavior. Journal of Personality and Social Psychology.
Dunn, T. W., Vittengl, J. R., Clark, L. A., Carmody, T., Thase, M. E., & Jarrett, R. B. 
(2012). Change in psychosocial functioning and depressive symptoms during acute-phase 
cognitive therapy for depression. Psychological Medicine, 42(2), 317-326. doi: 
Renner, F., Jarrett, R. B., Vittengl, J.R., Barrett, M.S., Clark, L. A., & Thase, M. E. (2012). 
Interpersonal problems as predictors of therapeutic alliance and symptom improvement in 
cognitive therapy for depression. Journal of Affective Disorders, 138(3), 458-467. 
Eaton, N. R., Krueger, R. F., South, S. C., Simms, L. J., & Clark, L. A. (2011). Contrasting 
prototypes and dimensions in the classification of personality pathology: Evidence that 
dimensions, but not prototypes, are robust. Psychological Medicine, 41(6), 1151-1163.
doi: 10.1017/S0033291710001650
Jarrett, R. B., Vittengl, J. R., Clark, L. A., & Thase, M. E. (2011). Skills of Cognitive 
Therapy (SoCT): A new measure of patients’ comprehension and use. Psychological 
Assessment, 23(3), 578-586. doi: 10.1037/a0022485
Krueger, R. F., Eaton, N. R., Clark, L. A., Watson, D., Markon, K. E., Derringer, J., & 
Skodol, A. E. (2011). Deriving an empirical structure of personality pathology for
DSM-5. Journal of Personality Disorders, 25(2), 170-191. doi: 
Latzman, R. D., Vaidya, J. G., Clark, L. A., & Watson, D. (2011). Components of 
Disinhibition (vs. Constraint) differentially predict aggression and alcohol use. European 
Journal of Personality, 25(6), 477-486. doi: 10.1002/per.821
Ready, R. E., Vaidya, J. G., Watson, D., Latzman, R. D., Koffel, E. A., & Clark, L. A.
(2011). Age-group differences in facets of positive and negative affect. Aging and 
Mental Health, 15(6), 785-795. doi: 10.1080/13607863.2011.562184

View Curriculum Vitae (PDF)
Contact Information:
Office: 124A Haggar Hall
Notre Dame, IN  46556

Phone: 574-631-7482

Email:  la.clark@nd.edu