- Bibliography: Abramovitch, A., Abramowitz, J. S., & McKay, D. (2021). The OCI-12: A syndromally valid modification of the obsessive-compulsive inventory-revised. Psychiatry Research, 298, 113808. https://doi.org/10.1016/j.psychres.2021.113808
Example citation
A shorter version of the OCI-R, the OCI-12, excludes the hoarding and neutralizing subscales and has similar psychometric properties compared to the full OCI-R scale [@abramovitch2021a]
Key takeaways
- Four core OCD dimensions in factor analyses of OCD (checking, ordering, washing, obsessing)
- OCI-R includes hoarding and neutralizing as well
- OCD patients (n = 1087), other anxiety disorders (n = 1306), community volunteers (n = 423)
- Cronbach’s alpha = 0.79 (but lower than OCI-R = 0.83)
- Two-week test-retest reliability r = 0.74
- Correlation with OCI-R score r = 0.93
- Similar sensitivity to treatment as the OCI-R, both had d = 1.89 when YBOCS was d = 2.59
- Cut-off for OCD vs non-clinical community sample = 11 (83% sens 81% spec)
- Cut-off for OCD vs other anx = 14 (72% sens 73% spec)
- 0-12 mild, 13-21 moderate, 22-48 severe
In their analyses they removed hoarding from the beginning, and evaluated whether the neutralizing factor was an appropriate addition.