Test of Nonverbal Intelligence 4th Edition

Linda Brown Ph.D.
Rita J. Sherbenou Ph.D.
Susan K. Johnsen, Ph.D.


The TONI-4 offers clinicians an assessment of intelligence, aptitude, abstract reasoning, and problem solving. This language-free intelligence test is ideal for evaluating those with questionable or limited language ability, as it requires only that the test taker point, nod, or blink in order to indicate chosen responses.

New Features: 
  • Current normative data
  • Item bias analyses 
  • Additional reliability and validity studies 
  • Elimination of floor effects 
  • Instruction in English and seven other languages
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Linda Brown Ph.D.,
Rita J. Sherbenou Ph.D.,
Susan K. Johnsen, Ph.D.

Age Range 6 to 90 years

Number of Items Form A: 60
Form B: 60

Administration Time 5 to 20 minutes

Translations Directions in Spanish, French, German, and Chinese

Administration Type Clinician-administered

Qualification Level B