Читать книгу Child Psychology - Jean-Pascal Assailly - Страница 21

The 1958 British birth cohort study was based on a sample of 18,558 British subjects, all infants born within one week in March 1958 (n = 17,638) and immigrants recruited at ages 7, 11 and 16 (n = 920). Information was collected from parents, teachers and physicians during childhood (birth, 7, 11 and 16 years) and from cosigners during adulthood (23, 33, 42, 45 and 50 years).