Abstract
The purpose of this study was to determine if the Einstellung effect, as measured by the Luchins water jar problems, is significantly affected by age and level of experimentally manipulated set induction. Thirty undergraduates (mean age — 21 years) and 30 older subjects (mean age — 68 years) matched on a test of verbal intelligence were randomly assigned to one of three treatment groups, either 1, 5, or 10 set induction problems. Results indicated that set induction hindered subjects’ performance on the water jar problems but not one age group more than the other. Instructions indicating efficient solutions to the problems were seen as effective, and subjects carried efficient solutions to a transfer alphabet maze task.
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