Verbal Interference in a Perceptual Comparison Task
ARMY MATERIEL COMMAND ABERDEEN PROVING GROUND MD HUMAN ENGINEERING LAB
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When Ss had to indicate if the colors of pairs of items from the Stroop test were the same or different, the usual interference effect was completely eliminated. However, when the verbal information consisted of SAME and DIFF rather than color names, interference was reestablished. This indicates that the perceptual comparison task does not eliminate interference simply by rendering Ss insensitive to the meanings of words.