Are IQ and intelligence the same

Are IQ and intelligence the same?

Intelligence and IQ are not the same. Your IQ is a measure (number) of the “intelligence” trait that all people have to a greater or lesser extent than others.

It is noteworthy that IQ measurements were taken before any discussion of what the Concept of intelligence includes at all. Normally the order should be reversed: first the term and only then the measurements. A look at the history of the IQ test and the ways in which such tests have been used (and abused) helps us understand this evolution

The origins of the IQ

At the end of the 19th century, the prevailing view was that all people were endowed with the same basic skills and that differences between them were simply due to different efforts and upbringing. Charles Darwin challenged this opinion, pointing to variation as the driving mechanism behind natural selection and evolution.

Galton, a cousin of Darwin's, saw this view confirmed in the exam results of freshmen at Cambridge. The math grades showed large variations between students, and Galton suggested that these variations were due to differences in (inherited) intellectual abilities (intelligence). In essence, these exam results, as well as today's performance tests in schools, were already Measurements of intelligence (practically identical to IQ results).

Use and abuse of IQ and intelligence measurements

Intelligence measurements were originally used to detect differences between individuals. To this day, in many places promotion to the next class or admission to a higher school is determined in this way, although the procedures are not based on IQ measurements in the narrower sense. There is nothing wrong with this use of intelligence measurements, or “IQs”, but the measurement of individual differences also opened the door to less positive uses.

Over time, IQ tests were used to cement social differences, for example to send immigrants back to their home countries because of allegedly low intelligence. IQ tests have also contributed to the eugenics movement.

Q for "quotient"

The IQ as a measurement of intelligence is a relative measurement. You don't have a fixed IQ (any more than your weight or height is "fixed"), but your IQ is a measure of how well you compare to others. You certainly have a low IQ compared to 50 Einstein's, but compared to 50 second graders, your IQ is much higher.

Your IQ is therefore a value that you achieve in comparison with others. The average of the entire group is defined as a value of “100”. Therefore, IQ and intelligence are not identical to each other.

To learn more about IQ and intelligence, see What is IQ and what is intelligence ?. Or, if you want to know your IQ, take the IQ test.