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The TONI 4 is a language-free nonverbal intelligence test with two equivalent forms that are appropriate for a wide age range. The TONI-4’s nonverbal, motor-reduced format makes the TONI-4 ideal for estimating the cognitive ability and general intellectual functioning of people who were previously hard to test with traditional measures of intelligence. Made for individuals ages 6-89 years
Reliability, Validity, and Norms
Updated normative data (N = 2,272) are representative of U.S Census statistics. Floor effects are minimal. Additional evidence of the test reliability and validity is offered for the entire normative sample and for specific subgroups of the sample to account for cognitive ability, race, ethnicity, and gender. The magnitude of the coefficients reported for the TONI-4 satisfies the most rigorous standards.