Take a professionally administered IQ test by a licensed psychologist
Use a standardized test such as WAIS, Stanford-Binet, or WISC if age-appropriate
Ask a school psychologist, clinic, or neuropsychologist for testing
Compare your score to the test’s normed average of 100
Review the full score report, including subtest scores and confidence intervals
Avoid relying on online IQ quizzes for an accurate result
Retest only after enough time has passed to reduce practice effects
Consider whether language, attention, stress, or sleep affected the result
If needed, ask a professional to interpret the score for you