Flynn Effect

The Flynn Effect is the consistent generation-over-generation rise in IQ scores going back to at least the 1930s — a rise that, as Kyle’s research notes record, started to slow and in some cases reverse around 2006. In the research for We Need a Renaissance of Rhetoric, the effect’s apparent reversal becomes evidence in the broader argument about cognitive off-loading: early studies link heavy AI use to deteriorating memory, problem-solving, and critical-thinking skills, with the effect more pronounced in younger users. The load-bearing quote comes from Robert Sternberg, a Cornell psychology professor, who told The Guardian: “The greatest worry in these times of generative AI is not that it may compromise human creativity or intelligence, but that it already has.”

Within AI Cheating in Education, the slowing/reversing Flynn Effect is filed under “the cognitive cost” — the empirical counterweight to the student rationale that schoolwork “isn’t relevant to life, so why do it?” It pairs with the humanist defense (writing is how thinking happens; “language is the mother, not the handmaiden, of thought”) to make the case that ceding intellectual labor to machines may already be eroding the very capacities education is meant to build.

Context: The Flynn Effect is named for political scientist James R. Flynn, who documented the sustained 20th-century rise in measured IQ across populations. A reversal or slowdown in some developed countries since roughly the mid-2000s — sometimes called a “negative” or “reverse” Flynn effect — has been reported in several studies, though its causes (educational, nutritional, environmental, methodological) remain debated.

Where this appears

• We Need a Renaissance of Rhetoric — the reversing Flynn Effect as evidence that AI off-loading may already be eroding intelligence; the Robert Sternberg quote.
• AI Cheating in Education — filed under “the cognitive cost” of AI off-loading.
• Robert Sternberg — the Cornell psychologist whose warning anchors the wiki’s use of the concept.