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Direct linkCantrell, Lisa; Boyer, Ty W.; Cordes, Sara; Smith, Linda B. – Developmental Science, 2015
Infants have shown variable success in quantity comparison tasks, with infants of a given age sometimes successfully discriminating numerical differences at a 2:3 ratio but requiring 1:2 and even 1:4 ratios of change at other times. The current explanations for these variable results include the two-systems proposal--a theoretical framework that…
Descriptors: Infants, Child Development, Discrimination Learning, Task Analysis
