Average Iq Of Americans 2024. Iq scores have substantially increased from 1932 through the 20th century, with differences ranging from three to five iq points per decade, according to a phenomenon known as the “flynn effect.” but a new study from. As standardized iq tests are updated regularly across time, it is likely that state (and national) iq estimates need updating as well.
By analyzing public data from iq tests, sat and act scores, and educational attainment levels, this article takes a more granular look at the average iq by state in the u.s., revealing not just average values but the patterns and. Over the past 100 years, americans’ mean iq has been on a slow but steady climb.