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The Pittsburgh Sleep Quality Index (PSQI) is a self-rated questionnaire which assesses sleep quality and disturbances over a 1-month time interval. Nineteen individual items generate seven "component" scores: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medication, and daytime dysfunction. The sum of scores for these seven components yields one global score.


Definition contributed by Anonymous
Pittsburgh Sleep Quality Index has been asserted to measure the following CONCEPTS
as measured by the contrast:

Phenotypes associated with Pittsburgh Sleep Quality Index


No associations have been added.


No associations have been added.


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IMPLEMENTATIONS of Pittsburgh Sleep Quality Index
PSQI article, scoring, and instrument

Experimental conditions are the subsets of an experiment that define the relevant experimental manipulation.


You must specify conditions before you can define contrasts.

In the Cognitive Atlas, we define a contrast as any function over experimental conditions. The simplest contrast is the indicator value for a specific condition; more complex contrasts include linear or nonlinear functions of the indicator across different experimental conditions.


No indicators have yet been associated.

An indicator is a specific quantitative or qualitative variable that is recorded for analysis. These may include behavioral variables (such as response time, accuracy, or other measures of performance) or physiological variables (including genetics, psychophysiology, or brain imaging data).


The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research.
Buysse DJ, Reynolds CF 3rd, Monk TH, Berman SR, Kupfer DJ
(Psychiatry Res)
1989 May