Quinn et al.(1993)examined the abilities of 3- and 4-month-old infants.After they looked at a series of photographs of cats,the infants were shown two new photos,one of a cat and one of a dog.They looked longer at the photograph of the dog.This indicated that infants this age ____.

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The study suggests that infants as young as 3-4 months old are able to categorize, as evidenced by their longer gaze at the photo of a dog, which is a different category from the photos of cats they had previously seen. This indicates that they are able to recognize and differentiate between different categories of animals. The study does not provide evidence for whether the infants liked dogs better than cats, were bored with the cat photos, or were unsure of what dogs were.

Quinn Et Al