Abstract
Information search is a critical step in resolving complex issues in many different decision-making domains. This study examines the relations between knowledge, search strategy, and performance in both unaided and aided information search. The results of an experiment indicates that (a) task-relevant knowledge is directly related to performance in aided but not in unaided information search; (b) in unaided information search, search strategy mediates the relation between knowledge and performance; that is, knowledge indirectly affects performance through its effect on search strategy; and (c) an information search aid moderates both the relation between knowledge and search strategy and the relation between search strategy and performance. These findings highlight the importance and the roles of task-relevant technical knowledge and search strategy in explaining information search performance and are most likely to apply to complex, knowledge-intensive domains in which decision makers search large databases to resolve issues.
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