Tag Archives: Intelligence quotient


Attentive Older Siblings

Studies show that children from larger families score more poorly on tests of IQvocabulary, and other academic indicators than kids from smaller families. Experts attribute this in part to reduced parental attention resulting from the need to divide time and attention among the children. This effect appears to be mitigated in families where older siblings are attuned to their younger siblings’ abilities and interact positively with them. A recent study found that children from large families who had “cognitively sensitive” older siblings performed better on a vocabulary test than those whose siblings were not. More… Discuss

Enhanced by Zemanta

Today In The News: Prenatal Pesticide Exposure Linked to Lower IQ

Prenatal Pesticide Exposure Linked to Lower IQ

Children whose mothers are exposed to high amounts of certain pesticides while pregnant appear to have lower intelligence quotients (IQs) than their peers when they reach school age. Three US studies have found that a child’s IQ tends to decrease in proportion to its mother’s exposure to organophosphates during pregnancy. While prenatal exposure to these pesticides was linked with childhood IQ, exposure after birth was not, suggesting that organophosphates are more damaging to developing fetuses than to children. More… Discuss