Development of an Indigenous Obsessive Compulsive Disorder Scale for Pakistan

The objective of the current study was to develop an indigenous scale for the assessment of Obsessive Compulsive Disorder (OCD) in Pakistan. The research was conducted in different phases which aimed to generate symptoms, examine factor structure, and establish reliability of the scale. Item-generation was based on symptoms elicited through interviews of clinical psychologists and patients diagnosed with OCD. In second phase inter-rater reliability for the relevance and readability of symptoms was estimated. Third phase examined psychometric properties including factor structure and reliability of the scale. It was administered on two hundred patients diagnosed with OCD. Two separate sets of Principal Component Analyses (PCA) using varimax rotation resulted in 5 categories of symptoms for obsessive and compulsive symptoms each. Internal consistency of the subscales was satisfactory. The construction and development of scale has important implications from clinical as well as research point of view.w.