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CORRIGAN, ROBERTA. Cognitive Correlates of Language: Differential Criteria Yield Differential Results. CmLD DEVELOPMENT, 1979, 50, 617-631. The growing number of studies on cognitive correlates for early language acquisition have produced results that are not always in agreement on what emerges when. This paper explores the hypothesis that representation, as measured by object-permanence attainment in sensorimotor stage 6, is the main prerequisite for language acquisition. In particular, it is shown that differing definitions of representation, differing assumptions about cognitive stages, and differing criteria for assessing cognitive abilities such as object permanence may account for some of the divergent research results. Further understanding of the relationship between language and cognitive development requires the precise specification of which cognitive behaviors correlate with which language behaviors, as well as more attention to details of task analysis and administration.
Roberta Corrigan (Sat,) studied this question.