The IQ of normal people is between 85- 1 15, which is a score to measure people's cognitive ability at this age through a series of standard tests. French Alfred Binet and his students invented it. According to the results of this test, he set the average IQ of ordinary people as 100, while the IQ of normal people, according to this test, is mostly between 85 and 1 15.

IQ is the ability of people to know objective things and use knowledge to solve practical problems. Intelligence is manifested in many aspects, such as observation, memory, imagination, creativity, analytical judgment, thinking, adaptability, reasoning and so on. , including quotient (CQ). At present, intelligence consists of three abilities: short-term memory ability, reasoning ability and language ability.

Extended data:

IQ can be divided into seven grades.

1 A genius with an IQ greater than 140?

2. Excellent intelligence between120-140?

3. Excellent intelligence between110-120?

4. The average intelligence is between 85- 1 15 (most people)?

Low intelligence between 5.80 and 90.

6, and there are some defects in intelligence between 70 and 80.

7, and finally less than 70 belongs to low energy.

After a night's sleep, the brain got a full rest, and the IQ after breakfast was the highest in a day. If you don't eat breakfast, your brain will be hungry and your IQ will be very low. After working for several hours, at noon, 12, my brain was very tired. At this time, people's spirit will be very poor and their IQ will be relatively low.

Baidu encyclopedia-IQ