Children’s Yale-Brown Obsessive Compulsive Scale

Obsessions are thoughts, ideas, or pictures that keep coming into your mind even though you do not want them to. They may be unpleasant, silly or embarassing.

Examples: the repeated thought that germs or dirt are harming you or other people, or that something unpleasant might happen to you or someone in your family or someone special to you

These are thoughts that keep coming back, over and over again.

Please think about your obsessions when answering the first 5 questions. Select the answer that best describes you over the last 7 days (including today).

How much time do you spend thinking about these things? How frequently do these thoughts occur?Please select your answerNoneLess than 1 hour/day or occasional occurrence1 to 3 hours/day or frequent occurrenceMore than 3 and up to 8 hours/day or very frequent occurrenceMore than 8 hours/day or nearly constant occurrence

How much do these thoughts get in the way of school or doing things with friends? Is there anything you don't do because of them?Please select your answerNoneSlight interference with social or school activities, but overall performance not impairedDefinite interference with social or school performance, but still manageableSubstantial interference in social or school performanceIncapacitating interference

How much do these thoughts bother or upset you?Please select your answerNoneInfrequent and not too disturbingFrequent and disturbing distress, but still manageableVery frequent and very disturbingNear constant and disabling distress/frustration

How hard do you try to stop the thoughts or ignore them?Please select your answerTry to resist all the time (or the obsessions are so minimal there is no need to actively resist them)Try to resist most of the time (e.g., more than half of the time)Make some effort to resistYield to all obsessions without attempting to control them, but with some reluctanceCompletely and willingly yield to all obsessions

When you try to fight the thoughts, can you beat them? How much control do you have over the thoughts?Please select your answerComplete controlMuch control; usually able to stop or divert obsessions with some effort and concentrationModerate control; sometimes able to stop or divert obsessionsLittle control; rarely successful in stopping or dismissing obsessions, can only divert attention with difficultyNo control; rarely able to even momentarily alter obsessive thinking

Please check any obsessions you are currently experiencing or have experienced in the past.

Contamination Obsessions

Aggressive Obsessions

Sexual ObsessionsSexual obsessions are repetitive thoughts that you would rather not have or find disturbing.

Hoarding/Saving ObsessionsA hoarding/saving obsession is different from hobbies and concern with objects of monetary or sentimental value.

Magical Thoughts/Superstitious Obsessions

Somatic Obsessions

Religious Obsessions (Scrupulosity)

Miscellaneous Obsessions

Other ObsessionsPlease describe any obsessions for which you selected "Other" above.

Compulsions are things that you feel you have to do although you may know that they do not make sense. Sometimes you may try to stop from doing them but this might not be possible. You might feel worried or angry or frustrated until you have finished what you have to do.

Examples: the need to wash your hands over and over again even though they are not really dirty, or the need to count up to a certain number while you do certain things

Please think about your compulsions when answering the last 5 questions. Select the answer that best describes you over the last 7 days (including today).

How much time do you spend doing these things? How often do you do these habits?Please select your answerNoneLess than 1 hour/day or occasional performance of compulsive behaviorsFrom 1 to 3 hours/day or frequent performance of compulsive behaviorsMore than 3 and up to 8 hours/day or very frequent performance of compulsive behaviorsMore than 8 hours/day or near constant performance of compulsive behaviors (too numerous to count)

How much do these habits get in the way of doing things with friends? Is there anything you don't do because of them?Please select your answerNoneSlight interference with social or school activities, but overall performance not impairedDefinite interference with social or school performance, but still manageableSubstantial interference in social or school performanceExtreme, incapacitating interference

How would you feel if prevented from carrying out your habits? How upset would you become? How upset do you get while carrying out your habits until you are satisfied?Please select your answerNoneOnly slight anxious/frustrated if habits prevented, or only slight anxiety/frustration during performance of habitsAnxiety/frustration would mount but remain manageable if habits prevented. Anxiety/frustration increases but remains manageable during performance of habits.Prominent and very disturbing increase in anxiety/frustration if compulsions interrupted. Prominent and very disturbing increase in anxiety/frustration during performance of compulsions.Extreme, incapacitating anxiety/frustration from any intervention aimed at modifying activity. Incapacitating anxiety/frustration develops during performance of compulsions.

How much do you try to fight the habits?Please select your answerMakes an effort to always resist, or the symptoms are so minimal there is no need to actively resistTries to resist most of the timeMake some effort to resistYield to all compulsions without attempting to control them, but with some reluctanceCompletely and willingly yield to all compulsions

How strong is the feeling that you have to carry out the habit(s)? How much control do you have over the habits?Please select your answerComplete controlPressure to perform behavior; usually able to stop with some effort and willpowerStrong pressure to perform behavior; can control it only with difficultyVery strong drive to perform behavior; must be carried to completion, can only delay with difficultyDrive to perform behavior is involuntary and overwhelming; rarely able to even momentarily delay activity

Please check any compulsions you are currently experiencing or have experienced in the past.

Washing/Cleaning Compulsions

Checking Compulsions

Repeating Rituals

Counting CompulsionsThis includes objects, certain numbers, words, etc.

Ordering/Arranging

Hoarding/Saving CompulsionThis is different from hobbies or concern with objects of monetary or sentimental value.

Excessive Games/Superstitious BehaviorsDifferent from age-appropriate magical games.

Rituals Involving Other PersonsThe need to involve another person (usually a parent) in ritual (e.g., asking a parent to repeatedly answer the same question, making mother perform certain meal-time rituals involving specific utensils.

Miscellaneous Compulsions

Other CompulsionsPlease describe any compulsions for which you selected "Other" above.