Cognitive recovery among male alcoholics and controls was investigated with the Trail-Making Test as an index of cognitive impairment. The test was administered twice to all Ss with an interval of approximately 1 year between testings. A reported measures analysis of variance showed that the controls performed significantly better than the alcoholics at both administrations, although the alcoholics did improve between the pre-and posttests. Reported drinking episodes that occurred between the pre-and posttests appeared to have no effect on cognitive recovery in the alcoholic group when relapsed and abstinent subgroups were compared.
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O’Leary et al. (1977) studied this question.
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