Performance on a marble-dropping task by groups of 10 mongoloid Ss was compared under 3 conditions of verbal feedback: negative feedback for errors, positive feedback for correct responses, and a combination of negative and positive feedback for errors and correct responses respectively. Results suggest that Ss with negative feedback outperformed the other groups and that the group with combined feedback outperformed those with only positive feedback. Failure-avoidance was discussed as an important aspect.
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