[The relationship patterns questionnaire (RPQ): validation by using a representative sample].
In this study the present form of the Relationship Patterns Questionnaire (RePat) will be presented as a successor of the Interpersonal Relationship Patterns Questionnaire (IRQ). Similar to the IRQ the RePat assesses the behavior of relationship concerning both one's own and the anticipated behavior of an important person on the basis of the SASB model and the CCRT method. In contrast to the IRQ, the RePat is much shorter and thus easier to use. The study describes the construction and the psychometric examination of the questionnaire by using a representative study (n = 2007, East = 1015, West = 992). The samples of East and West Germany show structural differences concerning its relationship patterns, which in our opinion are plausible for political and historical reasons. The clinical application and their implications for therapeutic interventions will be demonstrated by a single case using both the patient's and her partner's assessment of their relationship.