👉 Simon Baron-Cohen's "Adolescents with High and Low IQ" experiment tested the effects of genetic factors versus environment on intelligence by comparing cognitive abilities between high-IQ and low-IQ adolescents; he found that environmental factors like parenting style had a much stronger impact than genetics on IQ levels. Later experiments by Baron-Cohen explored social cognition, particularly empathy, revealing significant differences in how individuals with varying IQs process emotional information.