Table 5.

Correlations of Acute Hangover Scale with Measures of Neurocognitive Performance and Sleep that Were Impaired by Alcohol: Alcohol Condition Only

Measure	rb	n	p	% varianceb
CPT reaction time (milliseconds)	.26	90	.007	7%
Psychomotor Vigilance Task (PVT; milliseconds)	.26	91	.006	7%
Percent of time in REM sleep	−.23	85	.02	5%
Wake time after sleep onset (min)	.23	85	.02	5%
Sleep efficiency a (% of time asleep)	−.33	85	.001	11%
Stanford Sleepiness Scale	.25	90	.01	6%

^*p < .01,

^**p < .002,

^***p < .001,

p < .05 (trend).

^aVariable transformed to correct skewness Note: CPT = Continuous Performance Test.

^bEffect size: absolute value of r < .30 = small, .30–.49 = medium.