OCD Test – Yale-Brown Obsessive Compulsive Scale (Y‑BOCS)

Aggressive Obsessions

• Fear might harm self
• Fear might harm others
• Violent or horrific images
• Fear of blurting out obscenities or insults
• Fear of doing something else embarrassing
• Fear will act on unwanted impulses
• Fear will steal things
• Fear will harm others because not careful enough (e.g. hit/run motor vehicle accident)
• Fear will be responsible for something else terrible happening (e.g., fire, bulgary)
• Other aggressive obsessions

Contamination Obsessions

• Concerns or disgust with bodily waste or secretions (e.g., urine, feces, saliva)
• Concern with dirt or germs
• Excessive concern with environmental contaminants (e.g. asbestos, radiation toxic waste)
• Excessive concern with household items (e.g. cleansers solvents)
• Excessive concern with animals (e.g. insects)
• Bothered by sticky substances or residues
• Concerned will get ill because of contaminant
• Concerned will get others ill by spreading contaminant (Aggressive)
• No concern with consequences of contamination other than how it might feel

Sexual Obsessions

• Forbidden or perverse sexual thoughts, images, or impulses
• Content involving children or incest
• Content involving homosexuality
• Sexual behavior toward others (Aggressive)
• Other sexual obsessions

Hoarding or Saving Obsessions

Distinguish from hobbies and from normal concern with objects of monetary or sentimental value.

• Difficulty discarding or saving items beyond ordinary attachment or collecting

Religious Obsessions (Scrupulosity)

• Concerned with sacrilege or blasphemy
• Excess concern with right and wrong or morality
• Other religious obsessions

Somatic Obsessions

• Concern with illness or disease
• Excessive concern with a body part or aspect of appearance (e.g. dysmorphophobia)
• Other somatic obsessions

Miscellaneous Obsessions

• Need to know or remember
• Fear of saying certain things
• Fear of not saying just the right thing
• Fear of losing things
• Intrusive non-violent images
• Intrusive nonsense sounds, words, or music
• Bothered by certain sounds or noises
• Lucky or unlucky numbers
• Colors with special significance
• Superstitious fears
• Other miscellaneous obsessions

Obsessions with Need for Symmetry or Exactness

• Accompanied by magical thinking (e.g., concerned that another will have accident unless less things are in the right place)
• Not accompanied by magical thinking

Cleaning or Washing Compulsions

• Excessive or ritualized handwashing
• Excessive or ritualized showering, bathing, toothbrushing, grooming, or toilet routine
• Cleaning household items or other inanimate objects
• Other measures to prevent or remove contact with contaminants
• Other cleaning or washing compulsions

Checking Compulsions

• Checking locks, stove, appliances, and similar things
• Checking that did not or will not harm others
• Checking that did not or will not harm self
• Checking that nothing terrible did or will happen
• Checking that did not make a mistake
• Checking tied to somatic obsessions
• Other checking compulsions

Repeating Rituals

• Rereading or rewriting
• Need to repeat routine activities (jog, in/out door, up/down from chair)
• Other repeating rituals

Counting Compulsions

• Counting rituals

Ordering or Arranging Compulsions

• Ordering or arranging things until they feel right

Hoarding or Collecting Compulsions

Distinguish from hobbies and from normal concern with objects of monetary or sentimental value.

• Saving, collecting, or sorting items in a ritualized way

Miscellaneous Compulsions

• Mental rituals other than checking or counting
• Excessive listmaking
• Need to tell, ask, or confess
• Need to touch, tap, or rub
• Rituals involving blinking or staring
• Measures other than checking to prevent harm or terrible consequences
• Ritualized eating behaviors
• Superstitious behaviors
• Trichotillomania (the compulsive urge to pull out hair from the scalp, eyebrows, or other body areas)
• Other self-damaging or self-mutilating behaviors
• Other miscellaneous compulsions