First of all, the concept of IQ was developed by either the German psychologist and philosopher Wilhelm Stern in 1912, or by Lewis Terman in 1916, depending on which sources you consult. Intelligence testing was first done on a large scale before either of these dates. In 1904 psychologist Alfred Binet was commissioned by the French government to create a testing system to differentiate intellectually normal children from those who were inferior.
Thus the IQ scale called the "Binet Scale," (and later the "Simon-Binet Scale") was developed. Sometime later, "intelligence quotient," or "IQ," entered our vocabulary. Lewis M. Terman revised the Simon-Binet IQ Scale, and in 1916 published the Stanford Revision of the Binet-Simon Scale of Intelligence (also known as the Stanford-Binet). The following scale resulted for classifying IQ scores:
IQ ScaleOver 140 - Genius or almost genius
120 - 140 - Very superior intelligence
110 - 119 - Superior intelligence
90 - 109 - Average or normal intelligence
80 - 89 - Dullness
70 - 79 - Borderline deficiency in intelligence
Under 70 - Feeble-mindedness
Normal Distribution of IQ Scores50% of IQ scores fall between 90 and 110
70% of IQ scores fall between 85 and 115
95% of IQ scores fall between 70 and 130
99.5% of IQ scores fall between 60 and 140
Low IQ & Mental RetardationAn IQ under 70 is considered as "mental retardation" or limited mental ability. 5% of the population falls below 70 on IQ tests. The severity of the mental retardation is commonly 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 IQGenius or near-genius IQ is considered to start around 140 to 145. Less than 1/4 of 1 percent fall into this category. Here are some common designations on the IQ scale:115-124 - Above average
125-134 - Gifted
135-144 - Very gifted
145-164 - Genius
165-179 - High genius
180-200 - Highest genius
The Average On An IQ ScaleThe scoring of an IQ test is not the same for everyone, because age is used in determining a score. Intelligence quotient is determined by the "intelligence age" (I A) in relation to the chronological age of the person being tested. IQ scales can differ from each other (Americans use scales with IQ values above 200), but the mean value of most scales is an IQ of 100. This represents normal intelligence.
Think you are smart? Well, if your IQ is 130, that puts you ahead of 98% of people, but recent research shows that a person's level of self-discipline has nearly as much to do with success as their IQ level. In other words, your IQ score is not the only requirement for success.
The Wechsler Full Scale IQ is a measure of general intelligence that is derived from several subtests of the Wechsler Adult Intelligence Scale (WAIS) or Wechsler Intelligence Scale for Children (WISC). It provides an overall assessment of an individual's cognitive abilities, including verbal comprehension, perceptual reasoning, working memory, and processing speed. The Full Scale IQ score is a standardized score with a mean of 100 and a standard deviation of 15.
US IQ standard Deviation is 16.
A score of 171 is genius.
Sorry verbal iQ is 96. not 9
tyw
Generally IQ measures are standardized so that an IQ of 100 is the average score for the norming population, and standard deviations can vary from 10 to 15, depending on the measure used.
The Wechsler Full Scale IQ is a measure of general intelligence that is derived from several subtests of the Wechsler Adult Intelligence Scale (WAIS) or Wechsler Intelligence Scale for Children (WISC). It provides an overall assessment of an individual's cognitive abilities, including verbal comprehension, perceptual reasoning, working memory, and processing speed. The Full Scale IQ score is a standardized score with a mean of 100 and a standard deviation of 15.
US IQ standard Deviation is 16.
This is almost 2 standard deviations below average so these numbers indicate a person who will be challenged when it comes to learning academic material.
A score of 171 is genius.
(I am answering the question assuming it can fairly be rephrased "How does an IQ of 106 rate/rank on an IQ scale") By definition, an IQ of 100 is "average". Therefore a score of 106 is slightly above average. More specifically, using the WAIS/Stanford Binet definition wherein a standard deviation of 0.25 corresponds to 4 IQ points, an IQ of 106 roughly corresponds to a standard deviation of 0.38/0.39. What all that means is that an IQ of 106 roughly corresponds to a percentile rank within the population of about 65%, or, in other words, a person with an IQ of 106 is "smarter" than 65% of the population. By one accounting, the average college graduate has an IQ of 116 (and a percentile rank of 84%).
Sorry verbal iQ is 96. not 9
tyw
124
A great difference is that Wechsler scale doens't calculate your IQ the same way as STanford-binet intelligence scale. 132 iQ (wechsler) => something like 140...in the SBIS scale. You will find a really complete answer by going on best-iq-test (dot) on the title: IQ: IQ Test scales - The Stanford-Binet scale.
A score of 143 is very, very high.
Hillary Clinton's IQ score is 140. On the IQ scale, this puts her in the high range of "Exceptional."