数の保存課題における反応基準とセットサイズ効果との関連について
1985 年 56 巻 2 号 p. 99-102
詳細
1985 年 56 巻 2 号 p. 99-102
Discrepant findings have been reported during recent years on the effect of set size in number conservation tasks. The purpose of this paper is to bring a rapprochement between the conflicting sets of findings by considering the problem of response criteria. Subjects for the study consisted of 168 children aged four-six years. The results obtained indicated that the performance difference between small and large number conservation tasks was significant with judgments-only criteria but not with judgments-plus-explanations criteria. It was concluded that the discrepant findings are due partly to a lack of consensus among different investigators concerning the appropriate response criteria for inferring the presence of Piagetian concepts.
