An analysis of IQ Test relevance!

IQ tests or measurement system IQ and have appeared 30 years ago. How far they have played important role in the employment of labor, the tests were regarded with suspicion, some of the test treating them superficially. Those who have obtained higher average results have made claim to fame. Those minimum score but had vehemently contested their veracity.

IQ tests are a sensitive subject for some, for fall somewhat in contrast with the altered ego of the masters of brilliant minds, and exciting for others, such as researchers who have dedicated their lives to determine the optimal form of testing.

On the other hand, the testing industry, seemingly innocent and built the best intentions, lies a full history of racism and for less friendly to humanity, which will read as follows. This article aims to answer the question "Are IQ tests relevant?" With a short analysis of this method:

Some background can’t hurt - how and where they came from intelligence tests?

Intelligence tests were born in France of 1904, the Government asked psychologist Alfred Binet to find a method of assessing children's intelligence, so that the least equipped to be treated differently from normal or gifted children in special centers.

Finally came his Binet Scale, also known as the Simon-Binet Scale in recognition of his merits in the development and testing Teophile Simon.

Binet method applied to schools in Paris and created a standard based on data obtained. Thus, if 70% of children 8 years were to pass a test, mean that the test that was relevant. Finally, a very widespread term "IQ". IQ is the ratio of mental age and chronological age, with an average of 100. Thus, a child of 8 years who passed a test for children of 10 years, had an IQ of 10/8 x 100, or 125.

Soon tests were given importance in determining mental ability. However, Binet wanted to mention that when he created tests had in mind one thing - to locate students who needed more help to learn. He also said that schoolchildren who had a low IQ were unable to learn, but could learn harder than normal. In addition, Binet noted that the scale can’t measure intelligence, because intellectual abilities are not predictable, so they can’t be measured for linear surfaces.

The Flynn's effect

One Saturday in November, 1984, James Flynn, a sociologist at the University of Otago, New Zealand, received a package by mail, sent by his colleague in Utrecht. The package contained the results of intelligence tests that were given two different generations of Dutch eighteen years old.

Analyzing the data, Flynn discovered something very interesting - the generation of 18 years of the 80 had a much higher average than in the 50. Interested to further study, Flynn began to gather intelligence test results at the generation of nearly 30 countries in Europe, North America and Asia.

In most cases, results were much the same: IQs around the world grew by 0.3 points per year, or 30 per decade. For reasons unknown, the world seemed to be becoming smarter.

Flynn continued to analyze intelligence tests and their results, the research is now long known as Flynn's effect. His theory says that if an American born in the `30 has an IQ of 100, according to the Flynn effect, his children will have 108, and over 120 grandchildren. The effect can be applied to reverse course. If a teenager today is 100, means that his grandparents had 82.

And if we go further calculations, in 1900 schoolchildren should have an IQ of 70, suggesting that a century ago the United States was populated largely by people who today are considered to be mentally retarded.