Maudsley Obsessive-Compulsive Inventory (MOCI) Test

People who notice persistent doubts, intrusive thoughts, contamination worries, or repeated checking can use the Maudsley Obsessive-Compulsive Inventory (MOCI) Test to organize these experiences into a focused self-report profile. It is intended for respondents who want a clearer starting point for reflection. As an OCD symptom questionnaire, it indicates the level of symptom severity.

What This Assessment Explores

The inventory examines obsessive-compulsive experiences, including unwanted thoughts, contamination concerns, repeated checking, washing, orderliness, excessive detail, and the uneasy feeling that an action is incomplete.

For interpretation, a Maudsley obsessive-compulsive inventory score reflects the combined pattern rather than one isolated concern. All themes contribute to one displayed scale, Obsessive-Compulsive Symptoms (0-30). The displayed result bands are Low (0-11) and Elevated (12-30); higher scores may indicate greater obsessive-compulsive symptom severity and symptoms characteristic of OCD.

The main question themes are:

• Checking and doubt show difficulty trusting ordinary actions without repeated verification.
• Contamination and cleanliness cover fears of germs, illness, dirt, and excessive washing.
• Intrusive thoughts capture unwanted mental events that feel persistent or upsetting.
• Order, detail, and “not quite right” experiences reflect rigidity, slowness, or incompleteness.

Methodology and Evidence Base

The response format is simple: each statement has a True or False choice. The items are mixed in direction, asking about both the presence of symptoms and the absence of concerns, so every “True” answer should not be treated as more severe. The questionnaire reports a total score; item-level weighting is not stated, so no answer-by-answer point rule should be assumed.

Its named source instrument is the Maudsley Obsessional-Compulsive Inventory (Hodgson & Rachman, 1977). Sternberger and Burns (1990) examined the MOCI in a nonclinical sample, while Emmelkamp, Kraaijkamp, and van den Hout (1999) place it within broader OCD assessment. These sources support the construct, but this online presentation has not been established as a newly standardized administration of the published MOCI, so findings from the source instrument should not automatically be taken as validation of this format.

For interpretation, this obsessive-compulsive screening tool helps contextualize the reported symptom severity. Self-report is influenced by current stress, interpretation, memory, and candor. The score indicates symptom severity, not a diagnosis or substitute for broader professional assessment.