Intelligence quotient (IQ) is a quantitative assessment of a person's level of intelligence or level of intelligence relative to the level of intelligence of an average person of the same age. The average person's IQ is considered to be 100.

IQ is determined using specially developed tests with a certain number of logic, observation and spatial thinking tasks, according to the results of which the IQ score is calculated.

A normal score is between 85 and 115 points. If a person scores 115-125 points, they have an intelligence higher than the average norm. The high level of intelligence ranges from 125-135 points scored. Higher score is considered a genius IQ. On the other hand, there is a lower IQ score of 70 points. People who have not reached the designated threshold are usually classified as mentally retarded.

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