COLLECTIVE MEMORY PERFORMANCE Running head: COLLECTIVE MEMORY PERFORMANCE The Collective Memory Performance in a Recognition Memory Task
نویسنده
چکیده
I investigate the collective memory performance in a recognition memory task in which each individual in a group independently retrieves memories related to the same study items. For each test item in the recognition memory task, the aggregated memory judgment is based on the average of confidence ratings across individuals. Using a Bayesian Signal Detection Theory (SDT) analysis of the confidence ratings, I show that the aggregated confidence rating is associated with a discrimination performance that is substantially better than the best performing individual in the group and discuss a number of potential sources of noise related to encoding, retrieval and decision processes that are reduced as a result of averaging.
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