Critical thinking comprises the mental processes, strategies, and representations people use to solve problems, make decisions, and learn new concepts. The study of critical thinking combines the educational, philosophical, and psychological traditions of thought. R. Ennis offers a philosophical taxonomy suggesting that critical thinking results…

Although British psychologist Francis Galton lost the battle for the definition of intelligence in his own time, his views live on in the work of Richard Herrnstein and Charles Murray. They argue that the Intelligence Quotient (IQ) is an adequate measure of intelligence, and that IQ is highly heritable. They contend that there are racial and…