Feedback and self-efficacy, arousal, and performance of introverts and extraverts

Research has suggested that introverts and extraverts differ in their responses to performance feedback. The present study examined the effect on introverts and extraverts of a short-term memory task. Subjects (ns=8) were randomly assigned to one of three feedback conditions: positive, negative, or control. On posttest, introverts performed better than extraverts regardless of feedback condition. These findings suggest that individual differences in introversion-extraversion mediate differences in performance through subjective arousal, namely, state-anxiety.