Test of Nonverbal Intelligence, Fourth Edition (TONI-4) is a language-free, motor-reduced assessment designed to measure abstract reasoning and problem-solving in individuals aged 6 to 89. It is primarily used for people whose cognitive, linguistic, or motor skills might impair their performance on traditional intelligence tests. Core Test Features
The TONI-4 is a norm-referenced instrument that assesses through a series of increasingly difficult visual puzzles. toni-4 test pdf