Insomnia Severity Index (ISI)

Assess the nature, severity, and impact of insomnia and monitor treatment response in adults

About

Examines severity of sleep onset, sleep maintenance and early morning wakening problems, sleep dissatisfaction, interference of sleep difficulties with daytime functioning, noticeability of sleep problems by others, distress caused by the sleep difficulties.

Face and content validity; correlated with sleep diaries, polysomnography, and interviews; cutoff score of 10 had an 86.1% sensitivity and 87.7% specificity for detecting insomnia cases in the community sample.

Created by on 02/05/2021

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1. Difficulty falling asleep?

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