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CTONI-2

Comprehensive Test of Nonverbal Intelligence-Second Edition

Donald D. Hammill, Ed.D. , Nils A. Pearson, Ph.D. , J. Lee Wiederholt, Ph.D.

Measure nonverbal reasoning abilities in individuals 6 to 89 years
CTONI-2 - Comprehensive Test of Nonverbal Intelligence-Second Edition Manual

Overview

The CTONI-2™ is an unbiased measure of nonverbal reasoning abilities in individuals for whom most other mental ability tests are either inappropriate or biased. This instrument includes an expanded study of item bias. Results are useful for estimating the intelligence of individuals who experience undue language or fine motor skill difficulties. No oral responses, reading, writing, or object manipulation are required. The CTONI-2 measures analogical reasoning, categorical classification, and sequential reasoning, using six subtests in two different contexts: pictures of familiar objects (e.g. toys, people, animals) and geometric designs (unfamiliar sketches and drawings). Verbal instructions for a variety of non-English languages are now available.

The CTONI-2™ is an unbiased measure of nonverbal reasoning abilities in individuals for whom most other mental ability tests are either inappropriate or biased. This instrument includes an expanded study of item bias. Results are useful for estimating the intelligence of individuals who experience undue language or fine motor skill difficulties. No oral responses, reading, writing, or object manipulation are required. The CTONI-2 measures analogical reasoning, categorical classification, and sequential reasoning, using six subtests in two different contexts: pictures of familiar objects (e.g. toys, people, animals) and geometric designs (unfamiliar sketches and drawings). Verbal instructions for a variety of non-English languages are now available.

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