According to Terman, a child having I.Q. ranging from 90–100 is considered:

Concept: Terman's classification of intelligence, devised by Lewis Terman in his revision of the Stanford-Binet test, groups measured Intelligence Quotient (IQ) scores into descriptive bands, from Genius at the very top down to Feeble-Mindedness at the bottom, so a single test score can be read as a category of mental ability.

Application: Under Terman's original bands, a quotient of 90 to 110 is labelled Average (or Normal) Intelligence. The child's IQ of 90-100 lies entirely inside that band, so the child is classified as of Average Intelligence.

Contrast:

• Dullness covers roughly IQ 80-90, a band below the 90-100 range here, describing mildly below-average scorers.

• Superior Intelligence covers roughly IQ 110-120 (Very Superior above that), well above the 90-100 range here.

• Feeble Mindedness covers IQ scores below about 70, far below the 90-100 range here, denoting marked intellectual impairment.

Result: A child scoring 90-100 falls squarely in Terman's Average Intelligence band.