How high does the numerical scale go for I.Q. testing?

Question

0-? I took a test and mine came back 120. Just curious where that falls on the results scale.

Answer 1

140 and over Genius or near genius
120-140 Very superior intelligence
110-120 Superior intelligence
90-110 Normal or average intelligence
80-90 Dullness
70-80 Borderline deficiency
Below 70 Definite feeble-mindedness

Answer 2

The scale goes up to about 200 points. However, that is an extremely rare score and can be achieved only on a test specifically designed to measure scores in the upper ranges (like "Raven's Advanced Progressive Matrices" administered by Mensa). Your score falls in the 90th percentile, meaning that only about 10% of all people get 120 or a higher score. Here are the general guidelines for interpreting IQ scores:

140+ Extraordinary intelligence
130-140 Very superior intelligence
120-130 Superior intelligence
110-120 High average intelligence
90-110 Average intelligence

Answer 3

Contrary to popular belief, there is no lowest nor highest score on an IQ test, in THEORY. IQ can go up forever. The only thing is, as IQ increases the probability of someone scoring higher becomes lower and lower.

Probability of an IQ of 190 is 1 in 1,000,000,000. 200 is 1 in 76,000,000,000. 202 is 1 in 190,000,000,000. I could go on, but sadly I can't find a z score calculator capable of going any higher XD

The biggest limiting factor is the tests themselves. If you were to test every single person on Earth, in theory you should end up with a couple scores over 190. However, there are currently no professional tests capable of accurately measuring IQ beyond 166.

Answer 4

I think that is average to above average. A value below 70 is considered retarded, I think 110 or 120 might be high average, above 120 to 150 is smart, above 150 is genius I think. From what I've seen, I think 300 is the top, but it may have to do with a ratio of your actual age to your mental age.

Answer 5

40 - 54 Severely challenged (Less than 1% of test takers)
55 - 69 Challenged (2.3% of test takers)
70 - 84 Below average
85 - 114 Average (68% of test takers)
115 - 129 Above average
130 - 144 Gifted (2.3% of test takers)
145 - 159 Genius (Less than 1% of test takers)
160 - 175 Extraordinary genius

Answer 6

Look here.

http://www.geocities.com/rnseitz/Definition_of_IQ.html

120 is above normal, if normal is defined as the 50% of the population which is between 90-110.

Answer 7

Maximum would be 250