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Santelmann, Lynn M.; Jusczyk, Peter W. – Cognition, 1998
Five experiments examined 15- and 18-month olds' sensitivity to morphosyntactic dependencies. Results indicated that 18-month olds, but not 15-month olds, were sensitive to basic relationship between "is" and "-ing" and that 18-month-olds could track relationships between functor morphemes. Findings were consistent with hypothesis that 18-month…
Descriptors: Age Differences, Cognitive Development, English, Infant Behavior