Self-Generated Elaboration and Spacing Effects on Incidental Memory

Abstract

The purpose of the present study was to investigate the effect of self-generated elaboration on incidental memory as a function of type of presentation (massed vs spacing). Subjects generated answers to “why” questions for target sentences in a self-generated elaboration condition. They then rated the appropriateness of the answers to the questions presented by the experimenter in an experimenter-provided elaboration condition. This procedure was followed by free recall tests. The target sentences were presented twice, in either a massed presentation without intervening items between the first and the second presentation or spaced presentation in which 5 items appeared between the two presentations. The self-generated elaboration effect, namely, higher recall, of self-generated elaboration over experimenter-provided elaboration, occurred with spaced but not with massed presentation. So, self-generated elaboration was facilitated in the spaced presentation because the time between the first and the second presentations led to richer encoding of each target.

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