In terms of sheer size and duration, Britain's National Child Development Study is a behaviorist's dream. For 15 years this unique program has been periodically measuring the growth and maturation of every child who was born in England, Scotland and Wales from the third through the ninth of March 1958. Thus the National Children's Bureau, which was set up in 1963 with both private and public funding, has been working on an ideally random sample of more than 15,000 children from every kind of home and background.*
More Problems. The exhaustive data compiled...
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