ISI
Insomnia Severity Index (ISI)
The Insomnia Severity Index (ISI) is a brief questionnaire used to assess the nature, severity and impact of insomnia in adults. It is often used in clinical research as well as in clinical settings to monitor changes in symptoms over time.
- Number of questions
- 7 questions
- Estimated duration
- 1 minute
- Language
- English
- Original name
- Insomnia Severity Index
- Target audience
- Adults
- Authors
- Charles M. Morin, Maurice Savard, Jacques Bernard, Lise Corsale (1993)
- Category
- General
Preview of the 7 questions
Scoring & interpretation
Each item is rated on a scale from 0 to 4; total scores range from 0 to 28. A score between 0-7 indicates no clinically significant insomnia, 8-14 subthreshold insomnia, 15-21 moderate insomnia, and 22-28 severe insomnia.
Usage
This tool is not available on Mentaal. To access this questionnaire, please visit the website of the official distributor, Mapi Research Trust, and submit a request on ePROVIDE™
Available alternatives
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