Heterogeneity of decision-making strategies for preschoolers on a variant of the IGT.

Adaptive decision-making strategies are critical for dealing with the complexity of the social world. The present study investigated the use of decision-making strategies in preschoolers and their association to prosocial behavior and peer problems. Eighty-six preschoolers aged 3- and 4-years completed the preschool decision-making task (PGT), a child variant of the Iowa Gambling task . Win-stay/lose-shift responses along with exploration (consecutive choices from the advantageous deck) and exploitation (shifting between options) were examined. Preschoolers showed a range of strategies, with 4-year-olds adapting their approach as the game progressed and making better use of feedback in comparison to 3-year-olds. Children who differed in terms of choices from the advantageous deck were distinguished by different combinations of exploration and exploitation. Furthermore, unique combinations of decision-making strategies also distinguished children who were rated as high versus low in prosocial behavior as well as children rated as having a high versus low level of peer problems. The findings suggest that consideration of strategies used in decision-making tasks could provide useful insight in a clinical setting, particularly for populations with social difficulties.