The average IQ score is designed to be 100. IQ scores between 90 and 109 are considered average. Genetics accounts for about 50% of the IQ differences between people. The intelligence quotient (IQ) is ...
IQ tests have shaped how we define “smart” for generations. Now, experts are challenging the system—and what it’s been ...
THERE are few more controversial areas of science than the study of intelligence. Its history is littered with disreputable ideas, from phrenology and other pseudoscientific ways of measuring it to ...
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