Photo of Adelle Forth

Adelle Forth

Phone:613-520-2600 x 1267
Office:A519 Loeb Building


Adelle is an Associate Professor at the Department of Psychology/Institute of Criminology and Criminal Justice at Carleton University. She is the senior author of the Hare Psychopathy Checklist: Youth Version (Forth, Kosson, & Hare, 2003). She is also a co-author of the Structured Assessment of Violence Risk in Youth (Borum, Bartel, & Forth, 2003), a risk scale for predicting adolescent violence. She has also served as a consultant to the Federal Bureau of Investigations, Royal Canadian Mounted Police, the National Parole Board, Her Majesty’s Prison Service, the Pennsylvania Sex Offender Board, and has testified in various court proceedings on the construct of psychopathy.

Research Interests

Her research centers on validity of the construct of psychopathy in different populations, the emotional and cognitive processes that underlie psychopathy, and violence risk assessment. She has extensive experience training a wide variety of professionals on the administration, scoring, and use of psychopathy measures throughout North America, Europe, and Asia.

Selected Publications

Forth, A. E., Bo, S., & Kongerslev, M. (in press). Assessment of psychopathy: The Hare Psychopathy Checklists. In K. Kiehl & W. Sinnott-Armstrong (Eds.), Psychopathy and law. Oxford Press.

Kosson, D., Neumann, C., Forth, A., Salekin, R., Hare, R., Krishcer, M., & Sevecke, K. (in press). Factor Structure of  the Hare Psychopathy Checklist: Youth Version (PCL: YV) in adolescent females. Psychological Assessment.

Forth, A. E. & Book, A. (2010). Psychopathic traits in children and adolescents:  The relationship with antisocial behaviors and aggression. In D. Lynam & R. Salekin (Eds.) Handbook of youth psychopathy. Routledge.

Lloyd, C. D., Clark, H. J., & Forth, A. E. (2010). Psychopathy, expert testimony and indeterminate sentences: Exploring the relationship between Psychopathy Checklist-Revised testimony and trial outcome in Canada. Legal and Criminological Psychology, 15, 323-339.

Flight, J., & Forth, A. E. (2007). Instrumentally violent youth: The roles of empathy, attachment and psychopathy. Criminal Justice and Behavior, 34, 739-751.