Veale2016 - Sensitivity to change in the Obsessive Compulsive Inventory, Comparing the standard and revised versions in two cohorts of different severity

  • Type:#article
  • Year read:#read2021
  • Subject: OCI-R Psychometrics OCD
  • Bibtex: @veale2016
  • Bibliography: Veale, D., Lim, L. F., Nathan, S. L., & Gledhill, L. J. (2016). Sensitivity to change in the Obsessive Compulsive Inventory: Comparing the standard and revised versions in two cohorts of different severity. Journal of Obsessive-Compulsive and Related Disorders, 9, 16–23. https://doi.org/10.1016/j.jocrd.2016.02.001

Example citation

A cut-off of ≥17 has been suggested as the threshold for OCD caseness [@veale2016].

The reliable change score on the OCI-R is ≥13 points [@veale2016].

Key takeaways

  • They compared the full OCI, OCI-R and “OCI-R Main” which means the highest subscale
  • Cut-offs for caseness, reliable change, clinically significant change
  • n = 63 mild to moderate OCD, n = 73 severe OCD
  • Cut-off change score for achieving clinically significant improvement in the IAPT sample was >= 22, reliable change score was >= 13
  • In the severe sample, clinically significant improvement was >= 24, reliable change score was >= 15.

Cut-off of >= 17 on the OCI-R for caseness.

“This is the first study to directly compare the OCI and OCI-R using the same dataset. Our conclusion is that there does not seem to be any extra benefit from using the OCI over the OCI-R for measuring outcome in a service evaluation such as IAPT. The OCI-R has a significant advantage over the OCI with 24 fewer items to complete. This may be especially important for those people with OCD who struggle to complete a questionnaire in the context of a service like IAPT where a weekly measure is requested with the standard data set.”