Translation and validation of the German 12-item Obsessive-Compulsive Inventory (OCI-12) in clinical and non-clinical samples

The German version of the OCI-12 represents a syndromally valid and reliable inventory for assessing OCD symptoms. Psychometric properties are good-to-excellent and comparable to the original English version. The diagnostic sensitivity is good-to-excellent and further supports using the OCI-12 in clinical and research settings.