From: Dimensionality of the Pittsburgh Sleep Quality Index in the young collegiate adults
Pittsburgh Sleep Quality Index (PSQI) component | Sleep qualitya | Sleep efficiencya | Communality (h2) |
---|---|---|---|
PSQI component of overall sleep quality | .723 | .104 | .416 |
PSQI component of daytime dysfunction | .468 | −.019 | .513 |
PSQI component of sleep duration | .404 | −.020 | .502 |
PSQI component of sleep medication | −.160 | .659 | .508 |
PSQI component of sleep disturbances | .191 | .502 | .387 |
PSQI component of sleep efficiency | .121 | .397 | .620 |
PSQI component of sleep latency | .344 | .387 | .644 |
Percentage of total variance (%) | 35.045 | 16.228 | .416 |