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Two beliefs that act in concert have been proposed as the basis for the representativeness heuristic in general, and judgments about random sampling in particular: samples resemble their parent populations (resemblance), and random sampling is a self-correcting process (balancing). Based on the results of a preliminary experiment, we proposed the ‘rule-cuing’ hypothesis, which is that different aspects of sampling problems can invoke these two beliefs separately. We found that when response formats required subjects to estimate themean of a sample, subjects’ responses reflected resemblance beliefs, whereas when subjects estimated the total score in a sample, balancing beliefs were elicited. In additional experiments we eliminated two rival hypotheses: theproblem difficulty hypothesis, and thearithmetic inconsistency hypothesis. Results suggest that beliefs, as well as preferences, may be constructed on-line in response to task characteristics. 相似文献
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