The intellectual quotient is the result of dividing the mental age of the person and the chronological age in order to obtain the intelligence of a person , that is, the quotient is the result of the division, and that is why the correct thing is say IQ and not IQ.

If the score obtained is below 70, intelligence would be categorized as weak or below average, while if the score is above 130 it is considered exceptional intelligence (and obviously also above average). The average is between 90 and 110 scores. At Bekia, we tell you much more about this differentiation.

Currently both quotient and IQ are admitted by the RAE

Both quotient and IQ are accepted by the Royal Spanish Academy (RAE). Quotient, since it is the result of a division, as we have previously indicated (multiplying the result by 100 later); coefficient, as it is a numerical expression presented as a relationship between two quantities.

However, the psychological community does not agree with this acceptance and claims the IQ concept as the only correct form . The term intelligence quotient (IQ) was used for the first time by the psychologist William Stern in 1912, to give name to a new method that measured the results of intelligence tests in children (Mental Age Test).

This test is what we know today as IQ (or IQ, although it is not well said). The score obtained is based on a standard deviation of 15 , so that although the values ​​obtained in the test above 100 are considered above the mean and below 100 are considered below the mean, the standard deviation means that people who are between the scores of 90 and 110 are considered in the mean.

IC can change

It should be noted that IQ is not the intelligence of a person and, therefore, does not determine whether a person is intelligent or not, but an estimator of intelligence in general. That is, it gives us an idea of ​​a person’s capabilities but does not determine that they are capable of solving certain problems or doing certain things.

The result of the intelligence test can change with the years : you may obtain a score above the average in adolescence, and go to a score within the margins in adulthood . Thus, you cannot keep the intelligence test score for life, if you want to continue knowing that you have IQ, you will have to take the test more frequently.

The IQ scores give rise to the following intelligence classification, cataloging them from lowest to highest: on the one hand, there are null cognitive ability IQ 0-4 (“wild children”), profound cognitive disability IQ 5-19 (disease neurological), severe cognitive disability CI 20-34 (little or no language acquisition), moderate cognitive disability CI 35-54, mild cognitive disability CI 55-69 (they go through the “educable” stage), mental retardation CI 70-84 ( 1 in 9 people), below the average IQ 85-99 and the average IQ established IQ 100.

On the other hand, among the higher scores in the intelligence test we find: above average IQ 101-114, brilliant intelligence IQ 115-120 (1 in 9 people), intellectual giftedness IQ 130-139, intellectual genius CI 140-154 (1 in 100), high intellectual abilities CI 155-174 (1 in 3,500 people), exceptional intelligence CI 175-184 (1 in 700 thousand people), deep intelligence (1 in 18 million people) people) and intelligence greater than 201 (1 in 8 million people)