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This study examined the effects of the similarity of protagonist, thematic context, and goal object on choice of solution principles in analogical transfer. Kindergartners and second-graders listened to five stories before solving a problem. In the experimental condition, four stories included workable solution principles, and one of each of these included the same protagonist, the same goal object, and the same thematic context as the target problem. Children in the experimental condition at both ages produced more solutions than children in a control group. Kindergartners, but not second-graders, were particularly likely to transfer a solution associated with the same goal object, and to a lesser extent, same protagonist and story theme, compared to a solution in a source story sharing no surface feature with the target problem. The results indicate that younger children are more likely to rely on salient surface features whereas older children flexibly map underlying structure independently of these features.
