Verheul, R., Andrea, H., Berghout, C., Dolan, C.C., Busschbach, J.J.V., Van der Kroft, P.J.A., Bateman, A.W., & Fonagy, P. (2008). Severity Indices of Personality Problems (SIPP-118): Development, factor structure, reliability, and validity. Psychological Assessment, 20, 23-34.
Arnevik, E., Wilberg, T., Monsen, J.T., Andrea, H., & Karterud, S. (2009). A cross-national validity study of the Severity Indices of Personality Problems (SIPP-118). Personality and Mental Health, 3, 41-55.
Feenstra, D.J., Hutsebaut, J., Verheul, R., & Busschbach, J.J.V. (2011). Severity Indices of Personality Problems (SIPP-118) in adolescents: reliability and validity. Psychological Assessment, 23, 646-655.
The Severity Indices of Personality Problems, whether in English, Dutch or in translation, are copyrighted documents that may not be modified in any way. Paper versions may be downloaded and subsequently photocopied without charge by individuals or non-profit organizations provided they are not making any charge to participants or other persons. No one except members of the Viersprong Institute for Studies on Personality Disorders (VISPD) is authorized to create or distribute electronic versions for any purpose. Please contact firstname.lastname@example.org if you have any questions regarding the SIPP.