What are the different Intelligence Quotient (I.Q.) levels?

I need this for a project, and I an researching the different I.Q. stages, such as, 25 and below I.Q. is severe retardation. I just read the book "Flowers for Algernon" and I am making a sort of spectrum on how Charlie Gordon's I.Q. changes throughout the book.

What are the different Intelligence Quotient (I.Q.) levels?
An IQ of over 130 is considered superior


120 to 129 is a high average


90 to 109 is average


80 to 89 is low average


70 to 79 is Borderline








Mild retardation is an IQ of 55-70


moderate retardation is 40 to 55


severe retardation is 20 to 40


profound retardation is below 20
Reply:retardation, below average, average, above average, genius
Reply:en.wikipedia.org/wiki/Intelligence_quoti...


en.wikipedia.org/wiki/I.Q.


en.wikipedia.org/wiki/IQ


www.answers.com/topic/intelligence-quo...


www.bookrags.com/Intelligence_quotient
Reply:its a spectrum and i'm not sure what the levels are called but it breaks down like this 100 being average more than twenty more or less is the next level then its 40 more or less then 60 more or less above 160 being genious and below forty being severe retardation most ppls varies a little but you usually stay in the same category shy of some major event like stroke causing brain damage or something
Reply:i can't remember!!! However, i do remember from my psych class that for many professions that deal with children's well being that E.Q. (emotional quotient) is far more important that thier I.Q. I also remember that I.Q. tests do not test for various forms of intelligence such as spatial, verbal, kinaesthetic, interpersonal intelligences. Rather I.Q. tests only rate the subject's Logical/Mathemathical intelligence which studies have shown to be predominently strong areas for males. These are some reasons that I.Q. tests are no longer used to evaluate students in Australia.





Also, if you take a sociologist's look at such issues rather than a psychologist's, throughout history the same conditions have been present and labels have simply changed and often simply for the sake of categorising others. such as in the 1950's some one who was considered shy may now be diagnosed with an antisocial disorder. A great example is our parents would say a loud, unsettled child is a trouble maker, a class clown. 10 years ago our teachers and doctors would say they have Attention Defficet Distorder but today people displaying these characteristics are likely to be diagnosed as suffering Attention DEfficent with Hyperactivity Disorder.