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All simple attributes are also single-valued.
Philippe Rushton
A controversial psychologist known for his research on race, intelligence, and genetic heritability.
Genetic Factors
Genetic factors involve the roles that genes play in determining physical and psychological traits, including susceptibility to certain diseases or conditions.
IQ
A measure of a person's intelligence as indicated by an intelligence test, reflecting cognitive abilities relative to the average for one's age.
Social Class
A group division within society based on social and economic status.
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