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  1. A self-report measure of sleep quality for clinical populations, the PSQI consists of 19 items in seven subcategories. The instrument has been validated with various disorders and has a cut-off score of 5 for the global scale.

  2. A tool to measure the quality and patterns of sleep in older adults. The web page provides the instrument, scoring, validation, and references for the PSQI.

  3. The Pittsburgh Sleep Quality Index (PSQI) is a tool to assess sleep quality over a month. It was developed by researchers at the University of Pittsburgh and has been validated in various languages and contexts.

  4. A tool to measure the quality and patterns of sleep in older adults. The PDF file contains the instructions, scoring system, and references for the PSQI.

  5. Download a PDF file of the PSQI, a self-report questionnaire to assess sleep quality and disturbance. Learn how to score the PSQI and interpret the results.

  6. dfzljdn9uc3pi.cloudfront.net › 2021/11318/1 › PSQI_(English)Pittsburgh Sleep Quality Index

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  7. The Pittsburgh Sleep Quality Index (PSQI) is a self-rated questionnaire which assesses sleep quality and disturbances over a l-month time interval. Nineteen individual items generate seven “component” scores: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep