Abstract
Categories are learned in many ways, but studies of category learning have generally focused on classification learning. This focus may limit the understanding of categorization processes. Two experiments were conducted in which participants learned categories of animals by predicting how much food each animal would eat. We refer to this asirect category learning because the task and the feedback were not directly related to category membership, yet category learning was necessary for good performance in the task. In the first experiment, we compared the performance of participants who learned the categories indirectly with the performance of participants who first learned to classify the objects. In the second experiment, we replicated the basic findings and examined attention to different features during the learning task. In both experiments, participants who learned in the prediction-only condition displayed a broader distribution of attention than participants who learned in the classification-and-prediction condition did. Some participants in the prediction-only group learned the family resemblance structure of the categories, even when a perfect criterial attribute was present. In contrast, participants who first learned to classify the objects tended to learn the criterial attribute.
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The research was supported in part by the Arnold and Mabel Beckman Foundation.
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Minda, J.P., Ross, B.H. Learning categories by making predictions: An investigation of indirect category learning. Memory & Cognition 32, 1355–1368 (2004). https://doi.org/10.3758/BF03206326
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DOI: https://doi.org/10.3758/BF03206326