A recent study of cognitive analyses says the average intelligence quotient, or IQ, in the United States is about 98.

Intelligence quotient, more commonly referred to as IQ, is a measure of an individual’s intelligence, sanity, and acumen. The use of IQ for measuring intelligence is not the first of its kind.

North Dakota in the Upper Midwest ranks among the top 5 smartest states with the highest average IQ. It is one of the least populated states in the US and it has an estimated state IQ score of 101.7.

So, just how smart do you think Delawareans are? The state's average IQ ranking might surprise you. According to a study by data accessibility website Data Pandas, the First State ranks 28th in the ...

Exposure to leaded gasoline lowered the IQ of about half the population of the United States, a new study estimates. The peer-reviewed study, published Monday in the journal Proceedings of the ...