Take a professionally administered IQ test by a licensed psychologist
Use a standardized, well-normed IQ assessment such as WAIS, WISC, or Stanford-Binet
Avoid relying on online IQ quizzes for an accurate score
Compare your score to the test’s average of 100 and standard deviation of 15
Review subtest scores to see your strengths and weaknesses
Ask the test administrator for an interpretation of your results
Consider retesting only after a significant time gap if needed
Use the score as one measure of cognitive ability, not a complete measure of intelligence