Vancouver Obsessional Compulsive Inventory (VOCI)
The VOCI was designed to provide a self-report assessment of a range of obsessions, compulsions, avoidance behaviour, and personality characteristics of known or theoretical importance in obsessive–compulsive disorder (OCD). It has 55 questions rated on a five point Likert-type scale. It is useful in tracking the underlying cognitive structure of OCD and assessing symptoms over time. This scale is a more up to date revision of the Maudsley Obsessional Compulsive Inventory-Revised (MOCI-R).