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Abstract

A set of methods and results is offered for characterizing how people make decisions in the course of using computerized databases. In general, their performance resembles that revealed in studies of decision making in other contexts. In particular, people are only moderately sensitive to the likelihood of their succeeding, being overconfident for all but the easiest of tasks. These results are discussed in the context of previous research in information science and decision science, and with regard to their implications for the design of databases and the adaptation of users to them