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Gilbertson, Alan D. – Journal of Clinical Psychology, 1984
Examined the level of perceptual differentiation of 42 young adult drug addicts. Analysis of variance showed that addicts, like alcoholics, were less perceptually differentiated than normals. Correlational and/or multivariate procedures yielded significant relationships between differentiation, verbal and abstraction abilities, likelihood of…
Descriptors: Cognitive Style, Drug Addiction, Individual Differences, Intelligence Differences

O'Leary, Michael R.; And Others – Journal of Personality Assessment, 1980
The extent to which the Group Embedded Figures Test (GEFT) measures aspects of personality and cognitive impairment was explored in 81 male alcoholics receiving treatment for alcoholism. Results suggest GEFT may be more a measure of cognitive impairment than personality. Alternative explanations are explored. (Author/RL)
Descriptors: Adults, Adventitious Impairments, Alcoholism, Cognitive Measurement