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Test of Nonverbal Intelligence

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The Test of Nonverbal Intelligence (TONI) is now in its third version (TONI-3). This was developed by Linda Brown, Rita J Sherbenou and Susan K Johnsen as a language free intelligence measure which also helps in the assessment of aptitude, abstract reasoning and problem solving.


The test has a wide application with published norm for the age rang (6-86). Because of the non-verbal natur it is useful in the assessment of people with aphasia, dyslexia, language disabilities, learning disabilities, speech problems, and other conditions that may be the result of mental retardation, deafness, developmental disabilities, autism, cerebral palsy, stroke, head injury, or other nervous system disorders


Norms are available from the research conducted over the past 20 years. Current norms are based on a large sample of over 3000 subjects.


The measure is nonverbal and the administrator mimes what is required with the help of an accompanying picture book. The test comes with two equivalent forms (A an B) which can be used for testretest purposes. There are 50 items in each version which gradually become more demanding.


The test takes 15-20 minutes to administer.

Scoring procedures, (e.g., hand scored, software, etc):

software avaliable


Report formats available?

Validity

Reliability


Reference for the original studies of this instrument:


References of studies that have used this instrument:


External linksEdit

PAR website

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