But what is intelligence really? Although IQ tests are useful for predicting performance in academics, it has little to do with real-world success.
“If you look at the correlation between IQ and anything significant, all the predictability is at the low end,” said Dr. Robert Hogan, renowned psychologist and founder and president of Hogan Assessments. In other words, stupid people are statistically more likely to make bad choices than their peers. But we’ve all known people with high IQs who habitually make bad decisions.