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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 Comprehensive Test of Nonverbal Intelligence-Second Edition (CTONI-2™) is an unbiased measure of nonverbal reasoning abilities in individuals for whom most other mental ability tests are either inappropriate or biased. Results of the CTONI-2 are useful for estimating the intelligence of individuals who experience undue language or fine motor skill difficulties.

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).

Key Features:

  • Includes an expanded study of item bias
  • No oral responses, reading, writing, or object manipulation are required
  • Verbal instructions are available for a variety of non-English languages

The Comprehensive Test of Nonverbal Intelligence-Second Edition (CTONI-2™) is an unbiased measure of nonverbal reasoning abilities in individuals for whom most other mental ability tests are either inappropriate or biased. Results of the CTONI-2 are useful for estimating the intelligence of individuals who experience undue language or fine motor skill difficulties.

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).

Key Features:

  • Includes an expanded study of item bias
  • No oral responses, reading, writing, or object manipulation are required
  • Verbal instructions are available for a variety of non-English languages

Key Areas Measured



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