Obsessive Compulsive Inventory - Revised (OCI-R)

Recommended frequency: Every 4 weeks
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Summary

 

The Obsessive-Compulsive Inventory (“OCI-R”) is an 18-item self-report scale for OCD. The OCI-R is a shorter version than the OCI (Fao et al., 1998). Even though the OCI-R has only 18 items, it retains many of the qualities of the OCI. It was found to have good to excellent internal consistency, test–retest reliability, and convergent validity. Each item is scored on a 5-point scale (0-4 points), and the total score is the sum of the scores on all items. According to the authors, people with OCD typically have a score of 21 points and higher.

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Psychometric Properties

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In an initial study, results suggest the OCI-R is sensitive to treatment effects and that pre- to post test change on this instrument reflects improvement in OCD and related symptoms of depression, anxiety, and global functioning. The OCI-R was not sensitive to improvement in patients’ insight into the senselessness of their OCD symptoms.

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In a further study, confirmatory factor analysis confirmed a six-factor solution. The instrument also evidenced good convergent validity, and performed well in discriminating OCD from other anxiety disorders. Theoretically consistent patterns of associations between OCI-R symptom-based subscales and OCD-related cognitive variables were found, and five of the six OCI-R subscales corresponded closely to identified OCD symptom dimensions. The OCI-R is recommended as an empirically validated instrument that can be used in a range of clinical and research settings for research on OCD.

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Mental Health Public Awareness program-AAW2021