Reliability and Validity of the German Version of the Schema Mode Inventory

Abstract

This study presents an evaluation of the German version of the Schema Mode Inventory (SMI) including reliability and validity analyses. Psychometric properties were assessed. We analyzed the factor structure, internal reliability as well as intercorrelations between the subscales, and compared it to the results of the original version. This was done in a sample of N = 432 nonpatients, psychiatric patients with axis I and axis II diagnoses, and forensic patients. Results indicated a 14-factor structure of the SMI and good-to-excellent internal reliabilities of the 14 subscales (Cronbach’s α from .70 to .95). Furthermore, groups of nonpatients and psychiatric patients could be differentiated by their modes in the SMI as theoretically predicted. A first description of the mode presentations of forensic patients is presented.