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- "For persons who went on to take a Ph.D. Wrenn found a median IQ of 141" (Roe, 1952, p.164). Those individuals would have gotten 125 in 1986 tests.
|
IQ Range |
Classification |
|
140 and over |
Genius or near genius |
|
120-140 |
Very
superior intelligence |
|
110-120 |
Superior intelligence |
|
90-110 |
Normal or average intelligence |
|
80-90 |
Dullness |
|
70-80 |
Borderline deficiency |
|
Below 70 |
Definite feeble-mindedness |
|
Classification |
IQ Limits |
Percent Included |
|
Very Superior |
128 and over |
2.2 |
|
Superior |
120-127 |
6.7 |
|
Bright Normal |
111-119 |
16.1 |
|
Average |
91-110 |
50 |
|
Dull Normal |
80-90 |
16.1 |
|
Borderline |
66-79 |
6.7 |
|
Defective |
65 and below |
2.2 |
|
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