Degree of retardation
IQ range 84 -70
Educational Terminology : Slow learner
Phychological Terminology : Borderline
Prevalence : -
Prototype : Slow learner
Academic Potential : educable to grade 6
Daily Living : Fully independent
Work : employable
IQ range 69 - 55
Educational Terminology : Educable
Phychological Terminology : Mild
Prevalence : 2.5%
Prototype : Socio-economically deprived
Academic Potential : reading & writing at 4th - 5th grade or less
Daily Living : Relatively Independent
Work : Needs special training
IQ range 54 - 40
Educational Terminology : trainable
Phychological Terminology : moderate
Prevalence : 0.3%
Prototype : organic mental retardation
Academic Potential : limited reading, 1st and 2nd grade
Daily Living : can dress, use toilet, prepare food
Work : sheltered employment
IQ range 39 - 25
Educational Terminology : Sub-trainable
Phychological Terminology : Severe
Prevalence : -
Prototype : organic, severe CNS injury or syndrome
Academic Potential : very unlikely to read or write
Daily Living : can be toilet trained, dress with assisteance
Work : sheltered employment
IQ range <25
Educational Terminology : -
Phychological Terminology : Profound
Prevalence : 0.1%
Prototype : -
Academic Potential : none
Daily Living : can be sometimes be toilet trained, dress with assistance
Work : very limited
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