Effect of Lens-Model and Outcome Feedback in a Social Judgment Analogue

Abstract

96 Ss judged the correct category designations of human-like figures which differed with respect to four facial cues. The task was designed so that the correct category was defined by a linear function of the cues. Ss were randomly assigned to one of 4 feedback conditions in which they received (1) traditional “right” vs “wrong” feedback after each trial, (2) the correct category of each figure, (3) the values of each cue for each figure, or (4) the linear function relating the cues to the categories. The results were analyzed by Tucker's modification of the Brunswikian lens model equations. Ss who received “lens” feedback gained significantly more knowledge of the task system than Ss in traditional outcome feedback conditions, exercised significantly greater control over that knowledge, and achieved a significantly higher level of accuracy in their judgments. These results are discussed in terms of their relevance for situations of social judgment.

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