Normal people: 85 ~115; Smart people:120 ~140; Genius:140 ~ 200; Boundary value: 71~ 84;
Mild mental retardation: 50~70 points, with intelligence equivalent to that of a child aged 8~ 10.
Moderate mental retardation: 35-49 points, with intelligence equivalent to that of children aged 3-5.
Severe mental retardation: 20~34 points, and the quality is equivalent to that of children aged 3~5.
Extremely severe mental retardation: below 20 points, the intelligence is equivalent to a 2-year-old baby.
Edison's IQ is 135, which is the abbreviation of IQ. It is an important concept to express the level of intellectual development by numerical values. Iq IU= intellectual age/actual age * 100. The so-called intellectual age refers to the level that a person can reach in the intelligence test. For example, a five-year-old child can pass the intelligence test of a five-year-old child or a six-year-old child, but he is already seven years old. Then the intellectual age of the child is 6 years old, and his IQ is 6/5* 100= 120. The higher a child's intellectual age exceeds his actual age, the higher his IQ.
The normal range of IQ is 70- 130, and the average value is 100,/kloc-0+-15, that is, 85- 1 15 is medium,1/kloc. It is not easy to say that he is mentally retarded. Only when children pay attention to IQ testing has great limitations, because it can only measure children's current intelligence level, but can't measure children's potential intelligence ability, because children's development will change in the future development process because of the influence of environment and education, and they can only evaluate children's intelligence quantitatively, but not qualitatively, because IQ is only a numerical value and can't reflect children's intelligence differences. It can be explained that a person's academic performance can't predict a person's future achievements. Some psychologists believe that human intelligence should be divided into six types, namely, language intelligence, music intelligence, logic and mathematics intelligence, spatial relationship intelligence, body movement intelligence and self-cognitive intelligence. At present, the intelligence test we use can't measure all six kinds of intelligence, so only measuring the IQ of children at present is relatively poor, which can't explain the future problems. Sometimes, testing children is too tense, which affects the test results. Nor can it explain the real situation of children, because children with IQ between 60 and 70 must be analyzed and evaluated in combination with their social adaptability. If their social adaptability is lower than that of children of the same age and their IQ is below 70, they can only be considered to be mentally retarded, and education and help should be strengthened, but children with high IQ cannot relax their education.
Eating more alkaline food can improve IQ.
British scientists believe that the pH of human body fluids is related to IQ. In the range allowed by the acidity of body fluid, the IQ is low when it is acidic; I have a high IQ when it is alkaline. When scientists observed 42 boys aged 6 to 13, they found that the ph value of body fluids in the brain was greater than 7. The ratio of 0 is less than 7. The IQ of 0 is twice as high.
Because the acidity and alkalinity of body fluids can be regulated by diet, scientists put forward suggestions to improve the diet structure and eat more alkaline foods to improve the intelligence level. (inspirational personality signature)
Scientists advise children to eat less fish and meat and more soy products and dairy products; Eat less greasy food and more fruits and vegetables; Eat less sweets and more seafood. This eating habit is conducive to the improvement of people's IQ, especially children.