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Science 21 July 1967:
Vol. 157. no. 3786, pp. 331 - 333
DOI: 10.1126/science.157.3786.331
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Articles

Infant Vocalizations and Their Relationship to Mature Intelligence

James Cameron 1, Norman Livson 1, and Nancy Bayley 1

1 Institute of Human Development, Tolman Hall, University of California, Berkeley 94720

Correlations between infant development tests and later intelligence have been found previously to be very low. Through cluster analysis, six clusters of items were extracted from Bayley's California First Year Mental Scale. One item cluster composed principally of vocalizations did significantly correlate with girls' later intelligence, increasingly so with age, and more highly with verbal than performance scores.


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