Development and Validation of a German-Language Version of the Interpersonal Competence Questionnaire (ICQ)
In the current article, the development and validation of a German-language version of the Interpersonal Competence Questionnaire (ICQ; Buhrmester, Furman, Wittenberg, & Reis, 1988 ) are described. The five-factor structure of the ICQ is confirmed by structure equation analysis and reliability is well documented (Cronbach's α = .72-.84). The validation is carried out using the NEO-FFI ( Costa & McCrae, 1992 ) as well as biographical data. In accordance with our expectations, we found positive correlations between the ICQ scales and the NEO-FFI scales of extraversion, conscientiousness, openness and agreeableness as well as negative correlations between the ICQ scales and neuroticism (NEO-FFI). Interpersonal competence, measured by the ICQ, is positively correlated with biographical items, which can have a beneficial influence on the acquisition of social competencies (nonauthoritarian, supportive educational style of parents; leadership in youth) or can be seen as a consequence of already formed competencies (extraverted interpersonal behavior in youth, current social integration and behavior).