Mental deficiency used to be more finely classified using the following technical terms that later began to be abused by the rest of society (5):
IQ Range Classification
- 50-69 Moron
- 20-49 Imbecile
- below 20 Idiot
Mental deficiency used to be more finely classified using the following technical terms that later began to be abused by the rest of society (5):
IQ Range Classification
There are one-story intellects, two-story intellects, and three-story intellects with skylights. All fact collectors with no aim beyond their facts are one-story men. Two-story men compare reason and generalize, using labors of the fact collectors as well as their own. Three-story men idealize, imagine, and predict. Their best illuminations come from above through the skylight. Continue reading Oliver Wendell Holmes
An individual is considered to have mental retardation based on the following three criteria: