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Peer reviewedMareschal, Denis; Powell, Daisy; Volein, Agnes – Journal of Experimental Child Psychology, 2003
Examined 7- and 9-month-olds' ability to categorize cats and dogs as separate from one another. Found that both groups formed a cat category that included novel cats but excluded a dog and an eagle, and formed a dog category that included novel dogs and a novel cat but excluded an eagle. Results mirrored those of 3- to 4-month-olds with visual…
Descriptors: Age Differences, Classification, Cognitive Development, Discrimination Learning
