Child decision-making: On the burden of predecisional information search

Abstract

ABSTRACTIn many decision situations, individuals must actively search information before they can make a satisfying choice. In such instances, individuals must be aware of the fact that not all information may be equally relevant for the choice at hand—thus, individuals should weight information by its respective relevance. We compared children’s and adult’s decision-making in a child-friendly decision game. For each decision, participants received information on the content of 3 piggy banks on an information-board. In Experiment 1, we manipulated the weight-structure by presenting decisions with similarly relevant or differently relevant information. Results suggested that 8- to 9-year-olds did not adapt their search to the weight-structure. In contrast, 10- to 12-year-olds did consider relevance weights. Still, 8- to 9-year-olds and 10- to 12-year-olds were unable to search for a good, adultlike information sample containing all relevant and no irrelevant information. Thus, children based their decisions on a biased information sample. In Experiment 2, we intensified the need to consider relevance weights by introducing a search constraint. In doing so, we replicated the deficits of 8- to 9-year-olds and found adultlike behavior in 11- to 12-year-olds. Our findings suggest that although children understand that relevance may vary, they are not immediately able to effectively consider relevance weights in their information search—which appears to be a skill that continues to develop throughout childhood. We discuss the resulting implications for understanding children as decision makers as well as the general ability to perform structured information search.