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| | | | | | | | | | IQ Testing ( Library ThinkQuest )
As you probably already know, IQ stands for Intelligence Quotient. It is a scale that is used to compare the intelligence of one human to another. An IQ of 100 is considered average. An IQ above 100 is above average; below 100 is below average. If you were going to design a test to measure intelligence, what questions would you ask? Below you will find an IQ experiment you can run on your friends, links to IQ tests on the Internet, and some puzzles we invented to measure your intelligence. | Increasing intelligence: the Flynn effect
The results of intelligence tests in different countries show that over the past century average IQ has been increasing at a rate of about 3 points per decade
James Flynn, a political scientist working in New Zealand, observed in the 1980's that the scores of different groups of people on standard intelligence tests had consistently augmented over the past decades. Earlier researchers had failed to pay attention to that trend, because IQ scores are always calculated with respect to the average score for the present group. By definition, the average is set to 100. Someone who scores 20% more than the average would therefore get an IQ of 120. But if that person's score would be compared with the average for the corresponding group, tested one generation earlier, the final score would be about 130. Flynn was the first to systematically make such cross-generational comparisons.l | | Smart as We Can Get?
Gains on certain tests of intelligence are ending in some places
David Schneider
Psychometricians have long been aware of a phenomenon called the Flynn effect—a widespread and long-standing tendency for scores on certain tests of intelligence to rise over time. The effect is most pronounced in tests of so-called fluid intelligence, such as those that require the subject to identify the missing element in an array of figures. In the early 1980s, James R. Flynn, now an emeritus professor at the University of Otago in Dunedin, New Zealand, found strong evidence for this trend when he compared some newly introduced IQ tests with the older versions they replaced: When the same people took both tests, they appeared smarter when scored on the older exams compared with the new. If results were not continually normalized so that the mean score was 100, the IQ of test-takers would rise over time—and by a large amount: about 3 points or more per decade | | | | | | | | | | | | | |
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