精緻化の指標としての虚再認に及ぼす決定困難性の効果

概要

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The present study was carried out to investigate the effects of decision difficulty on the frequency of false recognition to the associates of targets as an index of the quantity of elaborations. The experiment involved orienting task, recognition and free recall tests in incidental paradigm. In the orienting task, subjects were required to judge which of two alternatives held the storonger associative relationship with a target. The difficulty of the decision was varied by manipulating the degree of association between each of the alternatives and target. The main results were as follows. Difficult judgement led to a better free recall of targets than easy one, namely, the difficulty of decision had a positive relationship with the recall performance of targets. However, the difficulty of decision had no relationship with the frequency of false recognition to the associates of targets. The above results were interpreted as showing that the effect of decision difficulty on free recall (difficult＞easy) was caused by the quality of informations added to the elaborated targets rather than by the quantity of those. Moreover, the effect of decision difficulty was discussed in terms of distinctiveness of informations added to the elaborated targets.