Meaning of IQ Scores
By Inderbir Kaur Sandhu, Ph.D
Q:
My Son underwent and IQ Test And I was told his score was 74. What does
this mean ? I was also told they really want to do a full psychological exam
on him but insurance will not pay for it.
A:
Below is a guide to classify IQ limits (intellectual ability), however,
the borders may be blurred (very marginally though) and depends on the
latest guide (the DSM V). Your son comes under the borderline range and
may need special services to help him in school.
| Classification |
IQ Limits |
| Very Superior |
130 and over |
| Superior |
120-129 |
| Above Average |
111-119 |
| Average |
91-110 |
| Below Average |
80-90 |
| Borderline/Cognitively Impaired |
66-79 |
| Defective |
65 and below |
Based on the latest guide for intellectually disability (DSM V), an IQ
score is not given utmost importance to ensure special services for the
child. However, it is expected that IQ or similar standardised test
scores be included in an individual's assessment. In DSM-5, intellectual
disability is considered to be approximately two standard deviations or
more below the population, which equals an IQ score of about 70 or
below. In your son's case, more tests may need to be done for him to be
eligible for the services; but probably for this more tests are required
and they may cost quite a bit. The school should be able to explain
exactly what they mean.
However, you may be able to push for services since the assessment
should be based across three domains (conceptual, social, and
practical). This will ensure that clinicians base their diagnosis on the
impact of the deficit in general mental. This is especially important in
the development of a treatment plan that includes education. Do speak to
the school to get help to do a full evaluation to ensure your son gets
the help he needs. There has to be a way to get him help if you can't
afford it.
Wishing you all the best.
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