| A) | Believes humans are biologically prewired to learn language at a certain time and in a certain way
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| B) | Studied imitation and deferred imitation by infants; discovered that infant's imitative abilities involve flexibility and adaptability
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| C) | Promoted the ecological view of perceptual development that states an infant's perceptual system actively selects information from the environment
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| D) | Promoted an early view of perception in which newborns experience a "blooming, buzzing" world of confusion; a view that is now believed to be generally incorrect
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| E) | Created a general, unifying theory of cognitive development based upon the way children use assimilation and accommodation to actively construct their cognitive world
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| F) | Along with Eleanor Gibson constructed the "visual cliff" apparatus that was used to test the development of depth perception in infants.
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| G) | Discovered that infants as young as 3 to 4 months of age expect objects to be substantial and permanent
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| H) | Used looking chambers to pioneer the visual preference method of studying infant perception
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| I) | After the age of 6 months, infants gradually lose the ability to recognize differences in sounds that are not important in their own language.
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| J) | Investigated the role of experience in helping infants judge the safety of crawling or walking down steep slopes
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