What is the concept of IQ 1 10- 120? Talk specifically

1 10- 120 IQ is what people usually call intelligence, which belongs to the normal category, and the average person is 90- 120.

1. IQ (English: IQ), that is, intelligence quotient, is an indicator of personal intelligence test scores and the scores of subjects of the same age, and is a standard for measuring personal intelligence. The concept of IQ was put forward by Stanford University psychologist Professor Terman.

2. French psychologist Binet.Alfred. Alfred (1857-1911) and his students compiled the first set of intelligence scale in the world. According to this intelligence scale, the average IQ of ordinary people is 100, while the IQ of normal people is mostly 85.

Intelligence is controlled by heredity and cannot be changed artificially. Due to congenital factors, people's intellectual development will be different. To measure people's intellectual development level at this age through a series of standard tests, it must be combined with mental IQ (SQ). It is the ability of people to know objective things and use knowledge to solve practical problems.

4. Professor Terman introduced this scale to the United States and revised it to Stanford-Binet Intelligence Scale, taking the ratio of psychological age to physiological age as an index to evaluate children's intelligence level. This ratio is called IQ, which is expressed by the formula: IQ =MA (psychological age) /CA (physiological age) × 100. People call this IQ ratio IQ.