Youth Psychopathic Traits Inventory (YPI) - Collateral Baseline
This measure appears in the following time-points: Collat_baseline.
Related Construct
Description of Measure
The Youth Psychopathic Traits Inventory (YPI; Andershed, Kerr, Stattin and Levander, 2002) is a self-report measure that assesses psychopathy among youth. We have asked these questions of both the subject and the collateral reporter. Items from the measure make up the following ten subscales: dishonest charm (e.g., "X has the ability to con people by using his/her charm and smile"), grandiosity (e.g., "X is better than everyone on almost everything"), lying (e.g., "Sometimes X lies for no reason, other than because it's fun"), manipulation (e.g., "X can make people believe almost anything"), remorselessness (e.g., "To feel guilt and regret when you have done something wrong is a waste of time"), unemotionality (e.g., "X usually feels calm when other people are scared"), callousness (e.g., "X thinks that crying is a sign of weakness, even if no one sees you"), thrill seeking (e.g., "X likes to be where exciting things happen"), impulsiveness (e.g., "X considers him/herself as a pretty impulsive person"), and irresponsibility (e.g., "X has often been late to work or classes in school").
Additionally, the measure taps three dimensions of psychopathy: Grandiose Manipulative Dimension, Callous Unemotional Dimension, and Impulsive Irresponsible Dimension. The scale contains 50 items to which participants respond on a 4-point Likert scale ranging from "Does not apply at all" to "Applies very well". Several items in the scale are reverse coded so that higher scores indicate more psychopathic characteristics.
The following scores are computed:
- 10 scores that correspond to each of the subscales mentioned above. Each of these scores is the sum of the 5 items contained in the subscale [C0CHARM], [C0GRAND], [C0LYING], [C0MANIP], [C0REMOR], [C0UNEMO], [C0CALLOS], [C0THRILL], [C0YPIIMP], [C0IRRESP].
- Grandiose-Manipulative Dimension [C0GRANMA]; sum of 20 items in this dimension
- Callous-Unemotional Dimension [C0CALUNE]; sum of 15 items in this dimension
- Impulsive-Irresponsible Dimension [C0IMPIRR]; sum of 15 items in this dimension
- YPI Total score [C0ypi]; sum of all 50 items in the measure
Data Issues
- This measure was added to the interview in version 01.06. At the baseline collateral interview, a total of 441 cases did not receive this measure due to the version issue. Note that the YPI is not available at the subject baseline due to a large amount of missing data.
References
- Andershed, H., Kerr, M., Stattin, H., & Levander, S. (2002). Psychopathic traits in non-referred youths: A new assessment tool. In E. Blauuw & L. Sheridan (Eds.), Psychopaths: Current International Perspectives (pp. 131-158). The Hague: Elsevier.