What Is the Flynn Effect and Is It Reversing? The Flynn effect is the long-term rise in average IQ test scores, roughly three points per decade through the 20th century. It has slowed and, in several developed countries since the 1990s, partially reversed, although meta-analyses still find overall gains continuing worldwide. Recent within-family studies indicate these shifts are driven by environmental factors, not genetics or immigration. What is the Flynn effect?

IQ scores rose for decades—now signs point to a slowdown or reversal. What’s driving it: changes in schooling, screens, environment, or the tests themselves? Read the breakdown and weigh in: trend or blip? #Education #FlynnEffect #Intelligence #IQ #ReverseFlynnEffect

Is Gen Z the First Generation Less Intelligent Than Their Parents? Gen Z intelligence decline is emerging as a serious concern among neuroscientists and education researchers. For over a century, each generation showed rising IQ scores, a pattern known as the Flynn effect. New data from the U.S., Europe, and global assessments now suggest this trend may be reversing raising urgent questions about how modern environments are shaping the developing brain.

Neuroscientist study reveals that Gen Z has become the first generation to be less intelligent than its predecessor, the Millennials.
#GenZIntelligenceDecline
#ReverseFlynnEffect
#CognitiveDecline
#IQTrends
#BrainScience

It's not even clear there's a rise in neurodevelopmental conditions rather than just diagnosis. The aetiology of those conditions is also unknown, so it might be very hard to get good data.

Probably a better candidate would be finding biochemical or social causes of the #ReverseFlynnEffect.