Another Look at Accuracy and Confidence in Social Judgments

Abstract

This study examined the relationship between accuracy and confidence on the Interpersonal Perception Task (IPT-15). This version of the IPT contains 15 brief, real-life scenes on videotape for which there are objectively correct answers to questions about status, intimacy, kinship, competition, and deception. A total of 241 participants were run in a 2 (high vs. low cognitive demand) × 2 (first impression vs. nonverbal cues strategy) × 2 (sex of participant) design. Overall, no significant relationship was found when accuracy scores were correlated with two between-participant measures of confidence. There was, however, a significant relationship within-participants between accuracy and confidence. Thus, participants' rated confidence for each of the 15 scenes did predict accuracy in judgments about the scenes. In addition, a 2 × 2 × 2 ANOVA on participants' transformed accuracy-confidence correlations revealed a small, significant effect of strategy. Specifically, the accuracy-confidence correlations were higher when participants were instructed to attend to specific nonverbal cues in making their judgments than when they were told to rely on their first impressions. Although there were no differences between men and women in either their accuracy or their accuracy-confidence correlations, men rated their confidence significantly higher than did women. The factors affecting the accuracy-confidence relationship and their role in automatic judgments are discussed.