Louis area, USA. Using biological, social, family and maternal information, the author examines the physical, motor intellectual, linguistic and social development in these children. Black and white, inner-city and suburban, and poor and wealthy children have been included in the sample. The volumes of this publication attempt to explain by multivariate analysis how selected factors influenece the course of growth in an expanding set of behavioural domains. The work was originally published in 1980, this edition has a new introduction and foreword.

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