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IQ is the acronym for intelligent quotient, and refers to a score given for several standardized intelligence tests. The first of these was developed by psychologist. He constructed the IQ test, as it would later be called, to determine which children might need additional help in scholarly pursuits. Today, the IQ test is commonly based on some model of the Stanford Binet Intelligence scale.

By using IQ Online tests and IQ exercises you develop your mind.

What Is "IQ"?

It was also observed that the gaps between children's mental ages and their chronological ages widened as the children got older. The 6-year-old with the mental age of 8 had a mental age of 12 by the time he was 9 and a mental age of 16 by the time he was12. Similarly, the 6-year-old with a mental age of 4 had a mental age of 6 when he was 9 and a mental age of 8 when he was 12. In 1912, the German psychologist, William Stern, noticed that even though the gap between mental age and chronological age widens as a child matures, the ratio of mental age to chronological age remains constant (and, as we will see, remains essentially constant throughout life). This constant ratio of mental age divided by chronological age was given the name "Intelligence Quotient". Actually, the intelligence quotient is defined as 100 times the Mental Age (MA) divided by the Chronological Age (CA). IQ = 100 MA/CA.

Men and women seem to score approximately the same on IQ testing, though men exhibit a greater variance in testing, and have more very high and very low scores than do women. The American Psychological Association conducted studies on IQs and came up with the following conclusions:

IQ score was a fairly good predictor for school performance.
IQ scores tend to exhibit some racial bias.
IQ score may also predict fairly well the degree to which a person may be successful in occupations.
Test scores may be influenced by personal genetic history.

How to increase IQ?

Use dead time. This is time that is otherwise wasted or just under-utilized. Driving time, time spent in waiting rooms, or even time spent raking your yard can be included in this. With a tape player and a trip to a public library, you can start to use this time to listen to books-on-tape. You may spend 200 hours a year in your car. What could you learn in that time?

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