Since the questionnaire relies on client self-report, all responses should be verified by the clinician, and a definitive diagnosis is made on clinical grounds taking into account how well the client understood the questionnaire, as well as other relevant information from the client.
A total score of 18 or more, or a mean score of 2.5 or more in any of the subscales suggests the presence of OCD, but is NOT diagnostic.
Clinicians would find the OCI–R easier to administer and score repeatedly when monitoring treatment progress, and patients would find the OCI–R to be less of a burden than the original version.
Respondents should be given appropriate time and space to complete the questionnaire. A quiet or private room is ideal for administration. Completion of the OCI-R typically takes 5-10 minutes. The clinician administering the OCI-R should introduce it as follows:
This questionnaire can give me an idea of how things have been going for you in the past month. So, today is (insert date). One month ago takes us back to (insert date). This is the period of time that the questionnaire focuses on. The questionnaire asks you to identify on a scale from 0 to 4 that best describes how much that experience has distressed or bothered you during the past month. There are no right or wrong answers. Do not spend too much time on any one statement. Please answer each question, thinking about how often the difficulty has been occurring and how severe it has been in the past month.
0 = Not at all
1 = A little (i.e. Once per week or less)
2 = Moderately (i.e. 2 to 3 times per week)
3 = A lot (i.e. 4 to 5 times per week)
4 = Extremely (i.e. 6 or more times a week)
Do you have any questions?
The clinician should be sure to be available to the respondent during administration to answer any questions that arise during completion of the OCI-R After completion of the measure, the clinician should make sure that all questions were answered. If items were skipped, the clinician may direct the respondent’s attention to those items and ask the respondent to complete them.