Everything About IQ Ratings

Recently I have taken one of the free IQ tests and got 137. "Cool",- I thought. But I didn't know really whether it was good, bad or else. I didn't know anything about IQ ratings.

If you have the same problem, read this post. I'll explain the topic here in its fullest.

The IQ ratings of adult people range from 20 to 200 scores. Because of much skepticism around the whole "IQ" topic, scientists developed solid methodologies to evaluate it.

Benchmark tests for measuring intelligent quotation are Stanford-Binet test for children and the Wechsler test for adults. If a person gets IQ score above 130 he is supposed to be gifted (wow, I'm one of them :)), while a score below 70 tells the person has some mental problems.

The original IQ Rating Scale was presented by Mr. Lewis Terman who coined the the term "intelligent quotation" in 1916.



He presented the IQ rating scale as follows:

• IQ ratings of over 140 -- Genius or near genius


• IQ ratings of 120 to 140 -- High intelligence


• IQ ratings of 110 to 119 -- Very intelligence


• IQ ratings of 90 to 109 -- Normal or average intelligence


• IQ ratings of 80 to 89 -- Dullness


• IQ ratings of 70-79 -- Borderline deficiency


• IQ ratings under 70 -- Definite feeble-mindedness

The IQ score distributes in the following way:

• 50% 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


• 5% of people have an IQ under 70.

Here is another variant of presenting the IQ rating scale. This one is for high scores only.
If you fall into this group I can congratulate you. You're a very intelligent person.
The psychologists believe that only 1 out of 400 people can score higher than 140.
The sub-divisions of this category of IQ scores are the following:

• IQ ratings of 115-124 -- Above average


• IQ ratings of 125-134 -- Gifted


• IQ ratings of 135-144 -- Highly gifted


• IQ ratings of 145-154 -- Genius


• IQ ratings of 155-164 -- Genius


• IQ ratings of 165-179 -- High genius


• IQ ratings of 180-200 -- Highest genius


• IQ ratings of 200 or above -- Immeasurable genius

There are a lot of IQ tests online now. The best ones cover different areas of mental
activity such as sequential reasoning, verbal analogues, factual knowledge, mathematical
skills, visual memory, and analogical reasoning.

Do not worry, if your score does not look great. It can be improved with systematic
learning and training. There's a whole lot of tips how to do that available online.
Just search the Google.

P.S. I hope you find this post about IQ ratings useful.