OCI-R [Obsessive-Compulsive Inventory - Revised]

The OCI-R is a validated self-report scale measuring the degree of obsessive-compulsive symptoms over the past month. It is commonly used both for screening and monitoring purposes.

Created by Dr. Edna B. Foa and colleagues. The scale has been published by the authors and widely distributed, though Dr. Foa retains copyright.

More: doi:10.1037/1040-3590.14.4.485

The following statements refer to experiences which many people have in their everyday lives. Please select the answer that best describes how much that experience has distressed or bothered you during the past month.

Not at all
A little
A lot
1. I have saved up so many things that they get in the way.
2. I check things more often than necessary.
3. I get upset if objects are not arranged properly.
4. I feel compelled to count while I am doing things.
5. I find it difficult to touch an object when I know it has been touched by strangers or certain people.
6. I find it difficult to control my own thoughts.
7. I collect things I don’t need.
8. I repeatedly check doors, windows, drawers, etc.
9. I get upset if others change the way I have arranged things.
10. I feel I have to repeat certain numbers.
11. I sometimes have to wash or clean myself simply because I feel contaminated.
12. I am upset by unpleasant thoughts that come into my mind against my will.
13. I avoid throwing things away because I am afraid I might need them later.
14. I repeatedly check gas and water taps and light switches after turning them off.
15. I need things to be arranged in a particular way.
16. I feel that there are good and bad numbers.
17. I wash my hands more often and longer than necessary.
18. I frequently get nasty thoughts and have difficulty in getting rid of them.


Self-report scales are for screening purposes only, and must be interpreted by a qualified health professional in conjunction with clinical assessment. They cannot be used alone for diagnostic or treatment purposes.