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Insomnia Severity Index (ISI)
Availability
Please email  the authors for information about obtaining the instrument:
Classification
Supplemental: Parkinson's Disease (PD)
Short Description of Instrument
The Insomnia Severity Index is a brief 7 question self-report instrument that measures the patient’s perception of insomnia.
Scoring
The questionnaire includes 7 items rated on a 0-4 scale that evaluate the severity of sleep initiation, the sleep maintenance, and other aspects related to insomnia during the past two weeks.
References
Bastien CH, Vallieres A, Morin CM. Validation of the Insomnia Severity Index as an outcome measure for insomnia research. Sleep Med 2001;2:297-307.
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