Intelligence Quotient or IQ as they are commonly known is a method of scoring the intelligence of a child or an adult. This test was developed in 1912 by a German psychologist named William Stern. This test was further developed in the 20th century by Theodore Simon and Alfred Binet. This test successfully replaced the Sranford binet Intelligence scale that was is use before.
Te modern IQ tests are nothing like they were first mental to be. Tests are now based on scores achieved in standardized tests that leads to gauging the ability of the child or adult is areas such as mathematical abilities, aptitude and comparative tests. These tests their median set to 100 and the standard deviation set to around 15. This number is different in different regions.
IQ tests have now been used as a means to predict the educational achievement of a child and to know if the child is in need of special attention. Various factors are said to be associated with IQ score such as mortality and morbidity in combination with parental status, parental IQ and even hereditary.
One of the most remarkable features of IQ scores is that it has helped in determining the incomes of particular IQ score groups. It has also been seen that IQ scores have been increasing at 3 points every decade since IQ tests were introduced in common practice. Many controversies have arisen since the use of these tests was made a common practice. Debates about its effectiveness at scoring the abilities of people have raise doubts. Experiments have shown that various other factors play a large part in the success of child in IQ tests. The discrimination of children based on IQ tests has been criticized over and over again. But till these tests are present, it is necessary for score takers to obtain scores above the average score of 130.