Abstract
The reliability and validity of Digital Stroop Test (Dig. Str.) that was developed for a screening test of the executive function were evaluated by two studies. The Dig. Str. was developed to evaluate both Stroop effect and Reverse Stroop effect using a computer tablet. In Study 1, the reliability of the Dig. Str. was evaluated using test-retest paradigm. High correlations between scores (mean response time per correct response) on the two tests were obtained. In Study 2, the construct validity was examined using a sample of healthy old-aged community dwellers. Old-aged people showed significantly slower mean response times than college students. Based on these findings, the Dig. Str. can be regarded as a reliable screening equipment for executive function.
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