Table of Contents
Who has an IQ of 161?
A 13-year-old pupil from Essex has recorded an IQ score of 161. Michael Doran is one of several pupils from a school in Canvey Island who have scored highly in a Mensa Genius Test.
What IQ is two standard deviations above mean?
2. The two-standard-deviations rule implies that about 5 percent of the population have IQ scores more than 30 points away from 100: 2.5 percent above 130 and 2.5 percent below 70.
Are IQ scores normally distributed?
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. About 68\% of individuals have IQ scores in the interval 100 ± 1 ( 15 ) = [ 85 , 115 ] . About 99.7\% of individuals have IQ scores in the interval 100 ± 3 ( 15 ) = [ 55 , 145 ] .
What is the standard deviation of IQ scores?
Scores on high-range I.Q. tests have in the past often been reported on a scale with a standard deviation (S.D.) of 16. This was inspired by the Stanford-Binet, a childhood test. There are, however, a number of reasons to prefer a scale with an S.D. of 15, similar to the Wechsler Adult Intelligence Scale (WAIS):
What is a good IQ scale for adults?
This fits in better with the convention of the WAIS — a test for adult intelligence — to use a 15 S.D.; In scientific and other literature on intelligence, I.Q. is almost always expressed on a scale with an S.D. of 15, except where one is explicitly talking about childhood scores on the Stanford-Binet;
What is the normal distribution of IQ of 160?
Studies of the distribution of these scores have shown that for instance a ratio I.Q. of 160 only corresponds to about 150 in a normal distribution with S.D. = 16, and I.Q. 170 corresponds to about 156 in a true normal distribution.
Does the Stanford-Binet have an SDS of 15?
An again later version of the Stanford-Binet has even adopted an S.D. of 15, as recommended in the present article.