IQ stands for "Intelligence Quotient" which is measure of a person’s intelli

游客2025-03-24 26

问题 IQ stands for "Intelligence Quotient" which is measure of a person’s intelligence found by means of an intelligence test.
In 1906 the psychologist, Alfred Binet (1857—1911), devised the standard in relation to which intelligence has since been assessed. Binet was asked to find a method of selecting all children in the schools of Paris who should be taken out of ordinary classes and put in special classes for defectives. The problem brought home to him the need for a standard of intelligence, and he hit upon the very simple concept of "mental age. "
First of all, he invented a variety of tests and put large numbers of children of different ages through them. He then found at what age each test was passed by the average child. Binet arranged the various tests in order of difficulty, and used them as a scale against which he could measure every individual. If, for example, a boy aged twelve could only do tests that were passed by the average boy of nine, Binet held that he was three years below average, and that he had a mental age of nine.
The concept of mental age provided Binet, and through him, other psychologists with the required standard. It enabled him to state scores in intelligence tests in terms of norm. At first, it was usual to express the result of a test by the difference between the "mental" and the "chronological" age. Some however, the "mental ratio" was introduced; that is to say, the ratio of the mental age to the chronological age. Thus a boy of twelve with mental age of nine has a mental ratio of 0. 75.
The mental age was replaced by the intelligence quotient or "IQ". Clearly, since the mental age of the average child is equal to the chronological age, the average IQ is 100. [br] Alfred Binet was asked to find a method of selecting______to be put in special classes.

选项 A、child of low intelligence
B、average children
C、intelligent children
D、very intelligent children

答案 A

解析本题为细节题。文中第二段第二句说：“比奈被要求寻找一种方法，以便从巴黎所有学校的正常班级中挑出一些学生安排到为有缺陷的孩子设计的特殊班级中。”由此可知，A正确。本题的关键是要清楚“defectives”一词的含义。

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