科研之友
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摘要
objective: this study aimed at evaluating reliability evidence of neuropsychological instrument iowa gambling task (igt) by the means of the test-retest method. method: the sample was comprised of 50 healthy subjects, 19-75 years of age, with at least five years of formal education. the assessment was done individually, in two meetings with an interval from 1 to 6 months between test and retest. results: the findings showed a significant moderate positive correlation between test-retest in the overall calculation. in the analysis by segments, a significant moderate positive correlation was found for blocks 4 and 5, whereas there were no significant correlations for blocks 1, 2 and 3. conclusion: these data corroborate recent studies that found moderate correlations between test-retest measures of executive functions, and suggest that the igt can be used to assess decision making over time if specific analyses are taken into account.
