OCI - Obsessive Compulsive Inventory

(c) Wellcome Trust Obsessive Compulsive Disorder Group (Oxford) 2000

The following statements refer to experiences which many people have in their everyday lives. Please check the box that best describes how much that experience has distressed or bothered you during the past month. Not at all A little Moderately A lot Extremely
1. Unpleasant thoughts come into my mind against my will and I cannot get rid of them
2. I think contact with bodily secretions (perspiration, saliva, blood, urine, etc.) may contaminate my clothes or somehow harm me
3. I ask people to repeat things to me several times, even though I understood them the first time
4. I wash and clean obsessively
5. I have to review mentally past events, conversations and actions to make sure that I didn't do something wrong
6. I have saved up so many things that they get in the way
7. I check things more often than necessary
8. I avoid using public toilets because I am afraid of disease or contamination
9. I repeatedly check doors, windows, drawers etc.
10. I repeatedly check gas and water taps and light switches after turning them off
11. I collect things I don't need
12. I have thoughts of having hurt someone without knowing it
13. I have thoughts that I might want to harm myself or others
14. I get upset if objects are not arranged properly
15. I feel obliged to follow a particular order in dressing, undressing and washing myself
16. I feel compelled to count while I am doing things
17. I am afraid of impulsively doing embarrassing or harmful things
18. I need to pray to cancel bad thoughts or feelings
19. I keep on checking forms or other things I have written
20. I get upset at the sight of knives, scissors and other sharp objects in case I lose control with them
21. I am excessively concerned about cleanliness
22. I find it difficult to touch an object when I know it has been touched by strangers or certain people
23. I need things to be arranged in a particular order
24. I get behind in my work because I repeat things over and over again
25. I feel I have to repeat certain numbers
26. After doing something carefully, I still have the impression I have not finished it
27. I find it difficult to touch garbage or dirty things
28. I find it difficult to control my own thoughts
29. I have to do things over and over again until it feels right
30. I am upset by unpleasant thoughts that come into my mind against my will
31. Before going to sleep I have to do certain things in a certain way
32. I go back to places to make sure that I have not harmed anyone
33. I frequently get nasty thoughts and have difficulty in getting rid of them
34. I avoid throwing things away because I am afraid I might need them later
35. I get upset if others change the way I have arranged my things
36. I feel that I must repeat certain words or phrases in my mind in order to wipe out bad thoughts, feelings or actions
37. After I have done things, I have persistent doubts about whether I really did them
38. I sometimes have to wash or clean myself simply because I feel contaminated
39. I feel that there are good numbers and bad numbers
40. I repeatedly check anything which might cause a fire
41. Even when I do something very carefully I feel that it is not quite right
42. I wash my hands more often or longer than necessary

IAPT clinical outcome measures state that the recommended cut-off for the OCI is a score of 40. "A cutoff score of 40 on distress allowed correct identification of 80% of patients with OCD and 80% of the participants without OCD".

Scores on OCI subscales

Subscale Washing subscale Checking subscale Doubting subscale Ordering subscale Obsessing subscale Hoarding subscale Mental Neutralizing subscale

Monitoring your progress

To save your scores use the buttons below. If your device supports local storage a copy of your scores will be saved and shown in a table and on a graph. Over time you will see how your scores change. You can delete either individual entries or all your scores in one go. Because your scores are saved locally to update your scores you will need to use the same browser (e.g. Safari, Chrome, Firefox) on the same device. It is important to remember that the security of this data is your responsibility. If this is a shared device or anyone else has access to your browser they will also be able to see your scores.


Please treat your scores on these or any other online questionnaires with caution. Questionnaires cannot be used to make a diagnosis of a mental health condition. Where a mental health condition has been diagnosed by a suitably qualified and experienced health professional validated questionnaires may be used as a guide to the current severity of your condition. Always consult with a qualified health professional if you are concerned in any way about your mental health.

If you are worried about your safety, you should immediately consult with your GP or another suitably qualified health professional. If you are in the UK the following numbers might be of help to you:

  • NHS Emergencies: call 999.
  • NHS Non-emergency number: call 111.
  • Samaritans: call 116 123 or email jo@samaritans.org

You can find more guidance and additional helpline numbers on this NHS page: Help for suicidal thoughts