> The IQ of children is highly correlated with the IQ of parents There is plenty of research to suggest that socio-economic (SES) status is the driving factor

> The IQ of children is highly correlated with the IQ of parents There is plenty of research to suggest that socio-economic (SES) status is the driving factor behind IQ, not genetics. An adopted child's IQ will tend to be higher if adopting parents have high SES