#113738 by
Vegan4Life
Mon Apr 16, 2018 11:18 pm
Mental deficiency used to be divided into the following sub-classifications, but these labels began to be abused by the public and are now largely obsolete: Borderline Deficiency (IQ 70-80), Moron (IQ 50-69), Imbecile (IQ 20-49) and Idiot (below 20). Mental deficiency is now generally called mental retardation.