This test is an updated rendition of the General Ability Measure for Adults (GAMA), also known as "Otis GAMA," which was developed in the 1990s by psychologists Jack A. Naglieri, PhD, and Achilles N. Bardos, PhD. Although named after Arthur S. Otis, who pioneered government-funded group intelligence testing during World War I, the GAMA itself was independently developed without direct government funding. It is a modernized cognitive assessment specifically designed to measure general intelligence nonverbally, minimizing language and cultural biases, and ensuring fairness for diverse populations.
The GAMA is professionally designed, widely adopted by educational and correctional institutions, and compliant with contemporary intellectual property standards, offering a robust and accessible cognitive assessment suitable for broad usage.
Your results are completely free, with the option to review all answers fully, and retake the test any time for a small one time fee.
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IQ (Intelligence Quotient) is a measure of a person's cognitive abilities compared to the general population. Our test specifically evaluates general intelligence through nonverbal problem-solving and reasoning.
Our test is an updated version of the General Ability Measure for Adults (GAMA), known as "Otis GAMA," originally developed by psychologists Jack A. Naglieri, PhD, and Achilles N. Bardos, PhD. This test is designed to assess general cognitive abilities nonverbally to minimize language and cultural biases.
Our IQ test is a psychometrically validated adaptation of the GAMA, designed by professional psychologists. Unlike many online IQ tests, ours provides scientifically reliable results through rigorous validation.
Yes, your initial test results are free. If you wish to retake the test or review detailed answers, there's a small, one-time fee.
No. We respect your privacy and do not sell your email or personal data. We comply with all relevant privacy laws.
