Yale-Brown Obsessive Compulsive Scale (Y-BOCS)

OCD Severity Rating Test

This is a test to rate the severity of obsessive-compulsive disorder symptoms.

Instructions: Check the appropriate score below. Choose only one number per item. Scores should reflect the composite effect of all obsessive compulsive symptoms. Rate the average occurence of each item during the prior week up to and including now.

General Information

The information you provide below will be included in the mini-report generated by this website. If you wish to print your report to share with your mental health care provider, fill in all the information below. All information you provide is confidential. No names, email addresses, or IP addesses are ever recorded.

Your Name (optional):
Your Treatment Provider:
Your Most Frequent Obsessions:	*
Your Most Frequent Compulsions:	*

* See the comprehensive YBOCS Checklist of Obsessions and Compulsions, if necessary.

Obsession Rating Scale

- Item -		- Range of Severity -
1.	Time Spent on Obsessions	0 hrs/day	0-1 hrs/day	1-3 hrs/day	3-8 hrs/day	8+ hrs/day
	Score	0	1	2	3	4
2.	Interference from Obsessions	None	Mild	Definite but Manageable	Substantial Impairment	Incapacitating
	Score	0	1	2	3	4
3.	Distress from Obsessions	None	Little	Moderate but Manageable	Severe	Near Constant, Disabling
	Score	0	1	2	3	4
4.	Resistance to Obsessions	Always Resists	Much Resistance	Some Resistance	Often Yields	Completely Yields
	Score	0	1	2	3	4
5.	Control Over Obsessions	Complete Control	Much Control	Some Control	Little Control	No Control
	Score	0	1	2	3	4

Compulsion Rating Scale

- Item -		- Range of Severity -
1.	Time Spent on Compulsions	0 hrs/day	0-1 hrs/day	1-3 hrs/day	3-8 hrs/day	8+ hrs/day
	Score	0	1	2	3	4
2.	Interference from Compulsions	None	Mild	Definite but Manageable	Substantial Impairment	Incapacitating
	Score	0	1	2	3	4
3.	Distress when Resisting Compulsions	None	Little	Moderate but Manageable	Severe	Near Constant, Disabling
	Score	0	1	2	3	4
4.	Resistance to Compulsions	Always Resists	Much Resistance	Some Resistance	Often Yields	Completely Yields
	Score	0	1	2	3	4
5.	Control Over Compulsions	Complete Control	Much Control	Some Control	Little Control	No Control
	Score	0	1	2	3	4

Total Y-BOCS score: range of severity for patients who have both obsessions and compulsions.

0-7 Subclinical

8-15 Mild

16-23 Moderate

24-31 Severe

32-40 Extreme

Credits: WK Goodman et al, "The Yale-Brown Obsessive Compulsive Scale," Arch Gen Psychiatry. 1989; 46:1006-1011.

The Yale-Brown Obsessive Compulsive Scale: I. Development Use and Reliability, Arch Gen Psychiatry. 1989; 46:1006-1011 (pdf)

The Yale-Brown Obsessive Compulsive Scale: II. Validity, Arch Gen Psychiatry. 1989; 46:1012-1016. (pdf)

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