
Keywords: مقیاس وسواس اجباری ییل-براون; Sudden gains; Obsessive compulsive disorder; Exposure therapy; Cognitive-behavioral therapy; OCSCI; Obsessive Compulsive Session Change Index; OCI; Obsessive Compulsive Inventory; Y-BOCS; Yale-Brown Obsessive Compulsive Scale; BDI-II; Beck Depression Inve