Inventory of Callous-Unemotional Traits – Youth Self-Report (ICUY)

The Inventory of Callous-Unemotional Traits (ICU) is a 24-item questionnaire designed to provide a comprehensive assessment of callous and unemotional traits.  These traits have proven to be important for designating a distinct subgroup group of antisocial and aggressive youth.

The ICU has three subscales:  Callousness, Uncaring, and Unemotional. Adolescent participants are asked to indicate how well each statement describes them on a 4-point scale: 0-Not true at all, 1-Somewhat true, 2-Very true, 3-Definitely true.

Domains Assessed: Personality Traits

Note: This assessment is given to child participants, ages 13-17 years old.


Essau, C.A., Sasagawa, S., & Frick, P.J. (2006). Callous-unemotional traits in a community sample of adolescents.  Assessment, 13, 454-469.

Fanti, K.A. Frick, P.J., & Georgiou, S. (2009). Linking callous-unemotional traits to instrumental and non-instrumental forms of aggression. Journal of Psychopathology and Behavioral Assessment, 31,285-298.

Kimonis, E.R., Frick, P.J., Skeem, J., Marsee, M.A., Cruise, K., Munoz, L.C. Aucoin, K.J. & Morris, A.S.  (2008). Assessing callous-unemotional traits in adolescent offenders: Validation of the Inventory of Callous-Unemotional Traits.  Journal of the International Association of Psychiatry and Law, 31, 241-251.

Roose, A., Bijttbier, P., Decoene, S., Claes, L., & Frick, P.J. (2010). Assessing the affective features of psychopathy in adolescence: A further validation of the Inventory of Callous and Unemotional Traits.  Assessment, 17, 44-57.

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