In a domain such as fighting fires, caring for hospitalized infants, or flying an airplane, expertise can be gained. In other domains, such as selecting stocks, making public policy, or raising a child, the time delays are long and the feedback is uncertain. Jim Shanteau (1992) has suggested that we will not build up real expertise when: The domain is dynamic. We have to predict human behavior. We have less chance for feedback. The task does not have enough repetition to build a sense of typicality. We have fewer trials. Under these conditions, we should be cautious about assuming that
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