From current theory on the differential effectiveness of imagery over verbal elaboration one would expect imagery to be especially effective when the task requires recall of more information for each associative unit. A modified paired-associate task, requiring recall of three responses for each stimulus, was administered to college students under both imagery and verbal mediation instructions. Contrary to expectation, no significant differences were obtained between mediation instructions. The results were interpreted with respect to the nature of instructions and the structural features of the task.
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