IQ Classifications and IQ Charts and Tables

According to Wikipedia, IQ reference charts are tables, suggested by psychologists to divide intelligence ranges into various categories. As reference charts, they are not to be taken as absolute or very precise. The reason for this is the lack of a uniform definition of intelligence and the current inability to wholly quantify it in a scientific manner. To get a "true" IQ score, multiple IQ tests must be taken since professionally administered IQ tests are only roughly 96% accurate. The average of multiple tests, usually at least three, is considered that person's "true" IQ score. However, these tests must be taken within a relatively short period of time, normally under one year for three or more tests.

For the complete article on IQ Charts visit Wikipedia.

IQ Ranges and IQ Levels

Synopsis: The IQ rating Scale covers a vast range of IQ scores from profound mental retardation to superior intelligence. Some refer to this as IQ levels of intelligence.

Normal IQ Score

The Stanford-Binet Rating Scale deems a normal IQ Score is an IQ Score that ranges from 85 - 115. Lewis Terman rated normal the IQ score as 90 - 109 IQ points. Furthermore, the Wechsler IQ Test Ratings Scale, states that the normal IQ score is set at 100 with a deviation of 15 points. In this aspect of scoring the test, it is very similar to the Stanford Binet.

High IQ Scores

The Stanford Binet rates a high IQ Score as an IQ Score that falls in the range of 116 - 132 points on the IQ chart. The Wechsler IQ Test Ratings Scale rates a higher than normal IQ as one that is 111 - 119 which would be considered bright normal. Furthermore, a superior iq would be measured as one that is 120 - 127 iq points.

Lewis Terman categorized superior intelligence for those who score 110 - 120 which is of course above the normal IQ score. For the most part, Lewis Terman's scale is not used. Depending on which test you take, you will be scored either on the Stanford Binet Scale or the Wechsler IQ Rating Scale.

Low IQ Scores

Low IQ scores are scores that are below the standard normal score of 85. So any score 84 and lower is considered a low IQ Score.

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