Pittsburgh Sleep Quality Index

The Pittsburgh Sleep Quality Index (PSQI) is a self-report questionnaire that assesses sleep quality. The measure consists of 19 individual items, creating 7 components that produce one global score. The scale assesses subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medication, and daytime dysfunction. Each item is scored from 0 to 3 with the overall score ranging from 0-21.

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Find out more about Pittsburgh Sleep Quality Index

Alternative name

Active? Yes

First used: 01 January 1970

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Debunking the myth of ‘Blue Mondays’: No evidence of affect drop after taking clinical MDMA
This open-label study (n=14) study assessed the decline in mood and cognition, also known as 'Blue Mondays,' that are believed to occur following MDMA use. The study assessed these side effects in participants being treated with MDMA (125mg followed by a 62.5mg dose 2hrs later) for alcohol use disorder (AUD). It was found participants maintained a positive mood during the week following the dosing session and suggests that the 'come downs' associated with MDMA may be associated with illicit sourcing of the substance and recreational use.

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