, Volume 34, Issue 4, pp 476-486,
Open Access This content is freely available online to anyone, anywhere at any time.

Youth Psychopathic Traits Inventory-Short Version: A Further Test of the Internal Consistency and Criterion Validity


The Youth Psychopathic Traits Inventory-Short Version (YPI-S; van Baardewijk et al., 2010) is a self-report measure to assess psychopathic-like traits in adolescents. The aim of the present study is to investigate the factor structure, the internal consistency, and the criterion validity of the YPI-S in 768 Belgian community adolescents (45.4 % males). In general, our study supported the YPI three factor structure while relevant indices showed that the instrument is internally consistent. In addition, relations between the YPI-S total score and dimension scores on the one hand and external criterion measures (e.g. conduct problems and self-reported offending) on the other hand were generally in line with predictions. The present study replicated and substantially extended previous findings of the YPI-S in a sample of community youth. Future studies are needed to test whether findings from community samples can be replicated in clinical-referred and justice-involved boys and adolescents.

The first author received his Ph.D. in June 2009 and is currently involved in the study and the implementation of forensic screening and assessment and in examining the usefulness of mental health problems and psychopathic-like traits to identify youth at risk for adverse outcomes. Recently, the author received grants to examine the usefulness of neuropsychology (i.e. executive functioning) and neurobiology (i.e. fMRI) to differentiate within the heterogeneous population of antisocial youth more homogeneous subgroups of youths.