Two Kinds of Set in Problem Solving
A number of findings suggest that there are important differences between functional fixedness (FF) and Einstellung (E), though the significance of these findings seems to have gone unrecognized. The results of the present study suggest that FF and E (a) display different forgetting curves (p < .001) and (b) respond differently to distribution of practice (p < .05). Interpretations of the results are discussed.