Normal IQ 90-110 - 68% of people
average IQ is 115-85
130 or higher you are gifted. NOT IN THE DSM. If you get this high the numbers don't mean anything anymore
IQ remains stable throughout a persons life.
70-80 borderline intellectual functioning.
70 or below is Mental retardation.
4 types of MR:
-educatable- they can learn -can get to a 6th grade level
-trainable- can teach to do things but can't think beyond what they are taught. ie when it's snowing person doesn't wear a coat.
Profound below 20
-The higher the level the more common it is