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Pittsburgh Sleep Quality Index

Abbreviation

PSQI

Description

The Pittsburgh Sleep Quality Index (PSQI) (Buysse et al., 1989) is a brief, validated instrument that measures sleep quality. It is a nineteen item self assessment of sleep quality and disturbances over a one-month time interval, and generates seven component scores: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medication, and daytime dysfunction.