OCI-R Scoring and Interpretation

This page covers how to score and interpret the Obsessive-Compulsive Inventory-Revised (OCI-R). For an overview of what the scale measures and how to administer it in Labvanced, see the OCI-R instrument page.

Scoring Procedure for the OCI-R

Each of the 18 items is scored 0 to 4, with a higher item response indicating greater distress from that obsessive-compulsive symptom over the past month. Item scores are summed to produce a single total score ranging from 0 to 72, and separately summed within each of the six 3-item subscales to produce a subscale score ranging from 0 to 12 (Foa et al., 2002). See the Sum Scoring guide for how this calculation is set up in Labvanced.

Reverse-Scored Items

None. All 18 items are scored in the same direction.

Subscale Computation

• Washing subscale: sum of items 5, 11, and 17.
• Checking subscale: sum of items 2, 8, and 14.
• Hoarding subscale: sum of items 1, 7, and 13.
• Ordering subscale: sum of items 3, 9, and 15.
• Obsessing subscale: sum of items 6, 12, and 18.
• Neutralizing subscale: sum of items 4, 10, and 16.

The full-scale total score is the sum of all 18 items (equivalently, the sum of all six subscale scores).

Cutoff Scores and Severity Bands for the OCI-R

Severity bands: Abramovitch et al. (2020), derived from a large clinical OCD sample benchmarked against the Yale-Brown Obsessive-Compulsive Scale, the clinician-administered diagnostic standard.

Separately, Foa et al. (2002) established diagnostic differentiation cutoffs in the original validation sample: a total score of 21 or higher was the optimal cutoff for distinguishing individuals with OCD from those with no psychiatric diagnosis, while a total score of 18 or higher was the optimal cutoff for distinguishing individuals with OCD from those with a different anxiety disorder. These two figures describe diagnostic differentiation between groups, not symptom-severity intensity, and are distinct from the Mild/Moderate/Severe bands above.

There are no widely published, separately validated severity bands for the six individual subscale scores; subscale scores are typically interpreted by comparing relative elevation across the six domains rather than against fixed cutoffs.

Interpreting Your Score on the OCI-R

A higher total score indicates greater overall obsessive-compulsive symptom severity. Because the OCI-R also produces six subscale scores, a respondent's pattern across Washing, Checking, Hoarding, Ordering, Obsessing, and Neutralizing can highlight which symptom domains are most elevated, even when the total score alone would not.

The OCI-R is a screening and severity-tracking tool, not a diagnostic instrument. A score in the Moderate or Severe range, or a total score above the Foa et al. (2002) diagnostic differentiation cutoffs, indicates elevated likelihood of clinically significant obsessive-compulsive symptoms, but does not on its own constitute a diagnosis. Interpretation should be made in the context of a full clinical evaluation by a qualified professional, typically using the clinician-administered Yale-Brown Obsessive-Compulsive Scale.

Reliability and Validity of the OCI-R (Extended)

Beyond the primary summary on the instrument page, further findings extend the evidence base for the OCI-R:

• Subscale reliability varies by sample and symptom type: Across the six subscales, internal consistency in a sample of 186 OCD patients ranged from α = .57 for Neutralizing (the lowest) to α = .93 for Hoarding (the highest) (Huppert et al., 2007). The Neutralizing subscale's comparatively weak and inconsistent reliability across studies likely reflects that its three items (numbers, counting, repeating) tap a less behaviorally consistent construct than more overt symptoms like washing or checking.
• Hoarding as a distinct construct: Splitting the OCI-R into a 15-item non-hoarding scale and a separate 3-item hoarding scale produced a better model fit than treating all six subscales as one structure, consistent with the DSM-5's reclassification of hoarding disorder as diagnostically separate from OCD (Wootton et al., 2015). Researchers screening specifically for OCD symptom severity should be aware that a total score combining all six subscales still includes hoarding-related content.
• Discriminant and clinical-group evidence: In the original validation study, the OCI-R total score and each subscale reliably distinguished OCD patients from both nonclinical individuals and from patients with a different anxiety disorder, supporting its use as a differential screening tool rather than only a general distress measure (Foa et al., 2002).

The OCI-R has also been independently translated and validated in numerous languages and populations, including Japanese (Koike et al., 2017) and Korean (Woo et al., 2010) versions. Reliability and factor-structure findings vary by translation and population; consult the specific translation's validation paper for population-specific figures. See the OCI-R instrument page for the primary reliability and validity summary.

Related Resources

References

• Abramovitch, A., Abramowitz, J. S., Riemann, B. C., & McKay, D. (2020). Severity benchmarks and contemporary clinical norms for the obsessive-compulsive inventory-revised (OCI-R). Journal of Obsessive-Compulsive and Related Disorders, 27, 100557. https://doi.org/10.1016/j.jocrd.2020.100557
• Foa, E. B., Huppert, J. D., Leiberg, S., Langner, R., Kichic, R., Hajcak, G., & Salkovskis, P. M. (2002). The obsessive-compulsive inventory: Development and validation of a short version. Psychological Assessment, 14(4), 485-496. https://doi.org/10.1037/1040-3590.14.4.485
• Huppert, J. D., Walther, M. R., Hajcak, G., Yadin, E., Foa, E. B., Simpson, H. B., & Liebowitz, M. R. (2007). The OCI-R: Validation of the subscales in a clinical sample. Journal of Anxiety Disorders, 21(3), 394-406. https://doi.org/10.1016/j.janxdis.2006.05.006
• Koike, H., Tsuchiyagaito, A., Hirano, Y., Oshima, F., Asano, K., Sugiura, Y., Kobori, O., Ishikawa, R., Nishinaka, H., Shimizu, E., & Nakagawa, A. (2017). Reliability and validity of the Japanese version of the obsessive-compulsive inventory-revised (OCI-R). Current Psychology, 39(1), 89-95. https://doi.org/10.1007/s12144-017-9741-2
• Woo, C.-W., Kwon, S.-M., Lim, Y.-J., & Shin, M.-S. (2010). The obsessive-compulsive inventory-revised (OCI-R): Psychometric properties of the Korean version and the order, gender, and cultural effects. Journal of Behavior Therapy and Experimental Psychiatry, 41(3), 220-227. https://doi.org/10.1016/j.jbtep.2010.01.006
• Wootton, B. M., Diefenbach, G. J., Bragdon, L. B., Steketee, G., Frost, R. O., & Tolin, D. F. (2015). A contemporary psychometric evaluation of the Obsessive Compulsive Inventory-Revised (OCI-R). Psychological Assessment, 27(3), 874-882. https://doi.org/10.1037/pas0000075