Validation of the German version of the Comparative Psychotherapy Process Scale.

The Comparative Psychotherapy Process Scale (CPPS) is a 20-item scale which aims to capture technical features distinguishing cognitive behavioral (CBT) from psychodynamic (PD) psychotherapy (and vice versa) in two corresponding subscales (CBT and PD Subscale). Our objective was to validate a German self-report version of the CPPS regarding a previous psychotherapy session in a psychotherapist- and in a patient-version. Fifty-three psychotherapists and their 53 patients answered to the according German CPPS Scale as well as to specific subscales of the Multitheoretical List of Therapeutic Interventions self-report-instrument (MULTI-30 subscales) assessing CBT- and PD-specific intervention characteristics.