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The Obsessive Compulsive Inventory: Psychometric properties in a nonclinical student sample

Lookup NU author(s): Dr Susan Thorpe, Stewart Elliott


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The psychometric properties of a new scale, the Obsessive Compulsive Inven- tory (OCI; Foa, Kozak, Salkovskis, Coles, & Amir, 1998), were examined in a nonclini- cal student sample. The study was a partial replication of the original validation study by Foa et al. Test-retest reliability, internal consistency, and convergent validity were examined using a sample of 126 undergraduate psychology students. Statistical analyses (Pearsons r and Cronbachs alpha) indicated adequate test-retest reliability for the full scales and subscales (coefficients ranging from 0.69 to 0.88) and high internal consist- ency (all coefficients exceeding 0.7). Convergent validity with the Maudsley Obsessional Compulsive Inventory (MOCI; Hodgson & Rachman, 1977) was adequate for the full scales and for the Washing and Checking subscales (coefficients ranging from 0.61 to 0.75). The OCI is a useful supplement to existing self-report measures of obsessive- compulsive symptomatology.

Publication metadata

Author(s): Simonds LM, Thorpe SJ, Elliott S

Publication type: Article

Publication status: Published

Journal: Behavioural and Cognitive Psychotherapy

Year: 2000

Volume: 28

Issue: 2

Pages: 153-159

ISSN (print): 1352-4658

ISSN (electronic): 1469-1833

Publisher: Cambridge University Press