THE ACQUISITION OF CONSERVATION OF SUBSTANCE AND WEIGHT IN CHILDREN .2. EXTERNAL REINFORCEMENT OF CONSERVATION OF WEIGHT AND OF THE OPERATIONS OF ADDITION AND SUBTRACTION

被引:93
作者
SMEDSLUND, J
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D O I
10.1111/j.1467-9450.1961.tb01223.x
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
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页码:71 / 84
页数:14
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