Clinical Research Directory

Inclusion Criteria: * • OCD symptoms, mean score \> 7 on the Yale Brown Obsessive Compulsive Scale (Y-BOCS) * Fear of contamination OCD symptoms, mean score \> 6 on the Padua Inventory contamination fear subscale (PI) * Having access to a compatible smartphone * Having an internet connection * Proficiency in one of the countries' languages (i.e., Dutch/ Flemish, German, or Swedish) * Willing to participate in the research study and provide informed consent Exclusion Criteria: * • Having been diagnosed with bipolar or psychotic disorder (self-report) * Severe depressive symptoms (Patient Health Questionnaire, PHQ-9, score \> 20) * Reporting suicidality (PHQ-9, item 9 \> 2 points at screening) * Fear of contamination due to disorder other than OCD (clinical judgment based on results from the Yale Brown Obsessive Compulsive Scale, Y-BOCS, Generalized Anxiety Disorder-7 items, GAD-7, Short Health Anxiety Inventory, SHAI) * Parallel psychological treatment * Non-stable dosage of psychoactive medication during the last three months or planned changes during the study period.