Comprehensive Test of Nonverbal Intelligence

The Comprehensive Test of Nonverbal Intelligence-Second Edition (CTONI-2) is designed for Age Range: 6-90 years and the time of testing is 1 Hour.

The CTONI-2 is a popular norm-referenced test that uses nonverbal formats to measure general intelligence of children and adults whose performance on traditional tests might be adversely affected by subtle or overt impairments involving language or motor abilities.

The Comprehensive Test of Nonverbal Intelligence Measures:

Analogical Reasoning
Categorical Classification
Sequential Reasoning

These areas are divided into six sub-tests in two different contexts:

1. Pictures of familiar objects

2. Geometric Designs

Six Subtests of the Comprehensive Test of Nonverbal Intelligence:

1. Pictorial Analogies

2. Geometric Analogies

3. Pictorial Categories

4. Geometric Categories

5. Pictorial Sequences

6. Geometric Sequences

Results are re4ported as standard scores, percentile ranks, and age equivalents. The CTONI-2 was normed on a large (2827) representative national sample that was stratified by age. The reliability coefficients of its composite are in the 0.90s with a few in the high 0.80s. It correlates with most well-known intelligence tests in the high 0.70s. New oral instructions for common non-English languages in the United States have been provided.

The CTONI-2 Complete Kit includes a Manual, 1 package of Examiner Record Forms, and 1 each of the Analogies, Categories, and Sequences Picture Books.

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