Proposed Explanations
See also: Health and intelligenceAttempted explanations have included improved nutrition, a trend toward smaller families, better education, greater environmental complexity, and heterosis (the occurrence of genetically superior offspring from mixing the genes of its parents). Another proposition is the gradual spread of test-taking skills. The Flynn effect has been too rapid for genetic selection to be the cause.
Read more about this topic: Flynn Effect
Famous quotes containing the words proposed and/or explanations:
“It has been proposed that the town should adopt for its coat of arms a field verdant, with the Concord circling nine times round.”
—Henry David Thoreau (1817–1862)
“In the nineteenth century ... explanations of who and what women were focused primarily on reproductive events—marriage, children, the empty nest, menopause. You could explain what was happening in a woman’s life, it was believed, if you knew where she was in this reproductive cycle.”
—Grace Baruch (20th century)