The Rest and CAGE alcohol screening instruments were compared in a random s
ample of 103 of 3609 young adults participating in a longitudinal panel. Re
st (t = 6.01, df = 101, p < .001) and CAGE (t = 7.27, df = 97, p < .001) sc
ores were significantly higher for those classified as having alcohol depen
dence than for those without dependence according to the short-form of the
Composite International Diagnostic Inventory (SF-CIDI). The areas under the
curve for the CAGE (0.840) and the Rest (0.783) were not statistically dif
ferent (z = 1.30, p > .05).