“…The validity of such an attribution is confirmed by the studies of children followed up in the National Child Development Study and the Child Health and Education Study, where it was possible to compare the outcomes of children who had entered care at different ages with measurements taken both before and after their admission. In both studies it was apparent that emotional and behavioural disturbance, where present, often antedated admission to care (Lambert, Essen, & Head, 1977 ;St Clair & Osborn, 1987), and the same applied to academic delays (Essen, Lambert, & Head, 1976 ;St Clair & Osborn, 1987). There was even some evidence that there was more academic catch-up in young children in care than in children who were not yet in care, but who were '' destined '' to enter care later (Essen et al, 1976 ;St Clair & Osborn, 1987).…”