Concord Special Education Parent Advisory Committee


Full Scale IQ Scores

Other sources generally cite IQ scores and their labels:

below 20 Profoundly Intellectual Impairment (old term: Profoundly Mentally Retareded (MR)
  20-34 Severe Intellectual Impairment (old term Severe Mentally Retarded (MR)*
  35-49

Moderate Intellectual Impairment (old term Moderate Mentally Retarded (MR)*

  50-70

Mild Intellectual Impairment - (old term Mild Mental Retarded (MR)

  71-84

Broaderline Intellectual Functioning

  85-99 Lower average - normal
 90-110

Average - normal

100-115 High average - normal
115-129 Bright
130-144 Gifted
145-159 Highly gifted
160 above Profoundly gifted

Full Scale IQs between 90 and 110 are considered within the "average range" (Mean IQ score is 100).
Full Scale IQ graph
* = source "Children with Mental Retardation" A Parents' Guide", (1993, Pub.Woodbine House Inc., p6).

 

For a table of DSM-5 IQ Categories, the approximate percent distribution of cases, DSM-IV Criteria (based on Full Scale IQ scores, DSM-5 Criteria (severity classified on the basis of daily skills), AAIDD Criteria (severity classified on the basis of intensity of support needed) SSI Listings Criteria, from the book: "Mental Disorders and Disabilities Among Low-Income Children".

Classifications of Intellectual Disability Severity

(Thanks to Susan Shapiro, M.S., CCC-SLP, Special Education Advocate and Consultant of Speaking of Ability, Inc.)


 

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This webpage was created Stepember 10, 2002 by Melody Orfei
Webpage last modified on July 20, 2018 - V6, by MelodyOrfei
mel3sons@gmail.com