Pace of aging, family environment and cognitive skills in children and adolescents.

Moreover, only a marginally significant association between age of the mother at birth and the ‘manual’ social class was found by regressing age of the mother at birth on paternal social class and the full battery of controls. 10 The strong association that we observe between paternal social class when the child was born and the child's PoA at age 15–19 and the Gelbach decomposition estimates thus suggest that there may be a direct causal effect of paternal social class at birth on PoA in adolescence. 4.3 .

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