Journal
PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN
Volume 37, Issue 10, Pages 1325-1338Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/0146167211410436
Keywords
collaborative judgment; dyads; naive realism; disagreement; judgment aggregation
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Four studies examined dyadic collaboration on quantitative estimation tasks. In accord with the tenets of naive realism, dyad members failed to give due weight to a partner's estimates, especially those greatly divergent from their own. The requirement to reach joint estimates through discussion increased accuracy more than reaching agreement through a mere exchange of numerical bids. However, even the latter procedure increased accuracy, relative to that of individual estimates (Study 1). Accuracy feedback neither increased weight given to partner's subsequent estimates nor produced improved accuracy (Study 2). Long-term dance partners, who shared a positive estimation bias, failed to improve accuracy when estimating their performance scores (Study 3). Having dyad members ask questions about the bases of partner's estimates produced greater yielding and accuracy increases than having them explain their own estimates (Study 4). The latter two studies provided additional direct and indirect evidence for the role of naive realism.
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