Table 1.
Baseline measures of cognition, affect, sleep, mental health, diurnal preference, and demographic characteristics of the sample measured at visit 1 (n = 47–52)
| Mean (SD) | |
|---|---|
| Gender | 41 (78.8%), females |
| Age | 22.58 (3.06) |
| Commissions | 52.00 (8.87) |
| Omissions | 46.15 (2.50) |
| Reaction time | 41.67 (5.04) |
| Negative affect | 13.86 (3.75) |
| Positive affect | 26.82 (5.81) |
| Performance | 4.71 (1.31) |
| Exertion | 4.83 (1.92) |
| Insomniaa | 5.77 (3.65) |
| Sleep qualityb | 3.25 (2.05) |
| Sleepinessc | 7.51 (4.48) |
| Anxietyd | 5.56 (3.38) |
| Depressiond | 2.82 (2.42) |
| Fatiguee | 3.9 (1.01) |
| Diurnal preferencef | 17.38 (4.37) |
aMeasured with Insomnia Severity Index.
bMeasured with Pittsburgh Sleep Quality Index, where low score indicates good sleep quality.
cMeasured with Epworth Sleepiness Scale.
dMeasued with Hospital Anxiety and Depression Scale.
eMeasured with Fatigue Severity Scale.
fMeasured with Diurnal Scale.