Examining the Spacing Effect in Advertising: Encoding Variability, Retrieval Processes, and Their Interaction
Sara L. Appleton-Knapp, Robert A. Bjork, Thomas D. Wickens
Journal of Consumer Research · 2005 · Volume 32 · Issue 2
Abstract
Recall of print material benefits from spacing repetitions of that material, an effect often attributed to varied encodings induced by changes in contextual cues. We examined an alternative explanation: retrieving earlier presentations during later presentations strengthens memory traces, the more so the greater the difficulty of such retrieval. In four experiments we found that ( a ) study-phase retrieval contributes to the benefits of spacing and ( b ) inducing variation via changes in ad formatting and content can be counterproductive at long spacing intervals, apparently because such changes decrease the likelihood that earlier presentations will be retrieved during later presentations.
Keywords
Advertising, Cognitive Processes, Learning, Memory, Experimental Design and Analysis (ANOVA)
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