Question 1

How accurate is the Stanford-Binet Online?

Accepted Answer

On a typical day, your score will fall within a few points of your previous result when retaking the test under similar conditions — the standard test-retest range any IQ instrument shows. The test uses the same five-factor model, the same score conventions (mean 100, SD 15, range 40–160), and the same item types as the published Stanford-Binet research literature.

Question 2

How long does the test take?

Accepted Answer

35 to 45 minutes in one sitting. The test is adaptive, so harder items appear as you answer correctly and easier items appear if you don't — you finish in roughly the same time regardless of where you score.

Question 3

What does the report include?

Accepted Answer

A Full-Scale IQ-equivalent score with percentile and classification, plus a factor-by-factor breakdown across the five Stanford-Binet factors: Innate Intelligence, Knowledge, Logical-Mathematical Intelligence, Visual-Spatial Processing, and Working Memory.

Question 4

Can I retake the test if I don't like the result?

Accepted Answer

Yes. We include a 14-day retake window so you can re-take if conditions on the day — tiredness, distraction, an unfamiliar interface — weren't what you wanted them to be. We also offer a 14-day refund if you change your mind.

Question 5

Is this the same as the Stanford-Binet test used in research?

Accepted Answer

Yes. The Stanford-Binet Online uses the same five-factor model, the same score conventions, and the same item types as the published Stanford-Binet research.

Question 6

Who can take it?

Accepted Answer

Anyone aged 5 to 80. The test is age-banded so percentiles are calibrated against your own cohort, not the general population — meaningful at any age.

Stanford-Binet 5 Online IQ Test

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