More truly aggressive and disobedient behavior...

 

Published today [July 16, 2003] in perhaps the most prestigious journal devoted to the scientific study of child development are the most recent results of the most comprehensive investigation ever conducted of the effects of day care on child development.

This peer-reviewed scientific report based on the federally-funded National Institute of Child Health and Human Development (NICHD) Study of Early Child Care addresses a long-standing controversy about whether lots of time spent in nonmaternal care beginning in the first year of life is related to elevated levels of aggressive and disobedient behavior.

Contrary to the expectations (and desires) of many in the field of child development, the NICHD Study shows

(1) that the more time children spend in any of a variety of nonmaternal care arrangements across the first 4.5 years of life, the more aggression, disobedience, and conflict with adults they manifest at 54 months of age and in kindergarten;

(2) that these seemingly adverse effects remain even after taking into account multiple features of children's families, as well as the quality and type of nonmaternal care which children experienced; and

(3) that more time in care predicts not just more assertive or independent behavior, but more truly aggressive and disobedient behavior, as well.

Professor Belsky is director of the Institute for the Study of Children, Families and Social Issues, Birkbeck University of London, and has been a collaborating investigator on the NICHD Study of Early Child Care since its inception in 1989.