英语作文：天才儿童
HOW IQ BECOMES IQ
In 1904 the French minister of education, facing limited resources for schooling, sought a way to separate the unable from the merely lazy. Alfred Binet got the job of devising selection principles and his brilliant solution put a stamp on the study of intelligence and was the forerunner of intelligence tests still used today. He developed a thirty-problem test in 1905, which tapped several abilities related to intellect, such as judgment and reasoning. The test determined a given childs mental age. The test previously established a norm for children of a given physical age. For example, five-year-olds on average get ten items correct, therefore, a child with a mental age of five should score 10, which would mean that he or she was functioning pretty much as others of that age. The childs mental age was then compared to his physical age.
A large disparity in the wrong direction might suggest inability rather than laziness and means that he or she was earmarked for special schooling. Binet, however, denied that the test was measuring intelligence and said that its purpose was simply diagnostic, for selection only. This message was however lost and caused many problems and misunderstandings later.
Although Binets test was popular, it was a bit inconvenient to deal with a variety of physical and mental ages. So, in 1912, Wilhelm Stern suggested simplifying this by reducing the two to a single number. He divided the mental age by the physical age and multiplied the result by 100. An average child, irrespective of age, would score 100. a number much lower than 100 would suggest the need for help and one much higher would suggest a child well ahead of his peer.
【英语作文：天才儿童】相关文章：
父母如何发现和培养天才儿童06-25
英语作文范文英语作文08-12
学好英语的英语作文11-05
学好英语英语作文11-05
中考英语话题作文中考英语作文-英语作文04-12
英语作文代沟的成因英语作文06-23
英语作文范文要英语作文,08-12
英语课英语作文03-03
怎样学好英语英语作文04-12