Intellegence Quotient Scores & Ratings
Lewis Terman (1916) developed the original notion of IQ and proposed this scale for classifying IQ scores:
Over 140 - Genius or near genius
120 - 140 - Very superior intelligence
110 - 119 - Superior intelligence
90 - 109 - Normal or average intelligence
80 - 89 - Dullness
70 - 79 - Borderline deficiency
Under 70 - Definite feeble-mindedness
Low IQ & Mental Retardation
5% of people have an IQ under 70 and this is generally considered as the benchmark for "mental retardation", a condition of limited mental ability in that it produces difficulty in adapting to the demands of life.
Severity of mental retardation can be broken into 4 levels:
50-70 - Mild mental retardation (85%)
35-50 - Moderate mental retardation (10%)
20-35 - Severe mental retardation (4%)
IQ < 20 - Profound mental retardation (1%)
High IQ & Genius IQ
Genius IQ is generally considered to begin around 140 to 145, representing ~.25% of the population (1 in 400). Here's a rough guide:
115-124 - Above average (e.g., university students)
125-134 - Gifted (e.g., post-graduate students)
135-144 - Highly gifted (e.g., intellectuals)
145-154 - Genius (e.g., professors)
155-164 - Genius (e.g., Nobel Prize winners)
165-179 - High genius
180-200 - Highest genius
>200 - "Unmeasurable genius"
More notes on High IQ and Genius IQ:
Einstein was considered to "only" have an IQ of about 160.
Mensa www.mensa.org is a society for people with high IQ, in the top 2% (1 in 50).
In 1926, psychologist Catherine Morris Cox published a study "of the most eminent men and women" who had lived between 1450 and 1850 to estimate what their IQs might have been.
Go to Estimated IQs of the Greatest Geniuses. website address: www.hem.bredband.net/b153434/index.htm
Summary: Understanding IQ
To understand IQ (Intelligence Quotient), you should first have an idea about what intelligence is - read various definitions.
IQ scores reflect general capacity for performing intellectual tasks, such as solving verbal and mathematical problems.
The average IQ score is 100. The standard deviation of IQ scores is 15. So, this means:
50% of people have IQ scores between 90 and 110
2.5% of people are very superior in intelligence (over 130)
2.5% of people are mentally deficient / impaired / retarded (under 70)
0.5% of people are near genius or genius (over 140)
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For You Mr. Watley!! Tired of your rudeness and insulting Blogs. 69 IQ, your're not fit to be a Prophet. However Harry, these are only numbers. If you say, you have an IQ of 69, then so be the social model of "self fulling prophecy" or, "As a man thinketh, so shall he be"!