The implicit association test in obsessive-compulsive disorder (IAT-OCD): Internal consistency and correlation with explicit assessments

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Abstract

Background: Traditional assessments of obsessive-compulsive symptoms, based on patients' introspection, are subject to several factors, including the levels of insight presented by them. Objectives: In this study, our goal was to assess the internal consistency and clinical correlations of a test that seeks to identify the existence of an implicit cognitive bias in patients with obsessive-compulsive disorder (OCD). Methods: 40 patients with OCD performed the implicit association test for OCD (IAT-OCD) and answered three instruments of self-assessment [Beck Anxiety Inventory (BAI), Inventory, Beck Depression Inventory (BDI), Obsessive-Compulsive Inventory-Revised (OCI-R)]. Results: Cronbach's alpha with IAT-OCD training items was 0.83 and without them 0.79. There were no significant correlations between the IAT-OCD scores and the instruments of self-assessment, e.g., BDI, BAI and different dimensions of the OCI-R. Discussion: Our findings are consistent with a high internal consistency of the IAT-OCD. The absence of correlations between the IAT-OCD and different dimensions of the OCI-R suggests that implicit and explicit measures of obsessive-compulsive symptoms may be independent constructs. Future studies, with greater number of patients, are needed to confirm this hypothesis.

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da Victoria, M. S., & Fontenelle, L. F. (2011). The implicit association test in obsessive-compulsive disorder (IAT-OCD): Internal consistency and correlation with explicit assessments. Revista de Psiquiatria Clinica, 38(2), 53–56. https://doi.org/10.1590/s0101-60832011000200002

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