Proceedings of the Annual Meeting of the Cognitive Science Society

There has been a debate on the process of insight problem solving. The special-process view posits that insight problemsolving processes are implicit unlike non-insight problem solving. The business-as-usual view, on the other hand, assumesthat the same processes as non-insight problem solving are involved in insight problem solving. To reconcile them, we canrely on the evidence on the verbal overshadowing effect on insight problem solving. However, there is a methodologicalproblem on how to determine whether the verbal overshadowing effect has emerged. The purpose of the present studywas to solve the problem using Bayes Factors. We reanalyzed the data presented in the previous studies examining theeffects of verbalization on insight problem solving. The results showed that some studies inappropriately concluded thatthe verbal overshadowing effect was not obtained. We also discussed possible moderating variables of the effect.