Abstract
The Comprehensive Test of Nonverbal Intelligence: Second Edition (CTONI-2: Hammill et al. 2009) is the second edition of the CTONI that was published originally in 1997, and was designed to provide examiners an efficient means for assessing the nonverbal reasoning ability of individuals who range in age from 6–0 to 89–11. It has six subtests (i.e., Pictorial Analogies, Geometric Analogies, Pictorial Categories, Geometric Categories, Pictorial Sequences, and Geometric Sequences). Three of these subtests use pictures of familiar objects as stimuli and three use unusual geometric designs. Examinees point to their answers; no manipulation of objects, reading, writing, or oral responses are required to take the test. This chapter describes (a) the theory underlying the CTONI-2, (b) a description of the subtests and composite scores, (c) the normative scores and their interpretation, (d) the uses of the test scores, (e) the standardization, norms, and reliability, and (f) the validity of the test. The CTONI-2 provides a psychometrically sound measure of intelligence within a nonverbal format. It is appropriate for a wide range of ages and offers subtest and composite scores.
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Hammill, D.D., Pearson, N. (2017). Comprehensive Test of Nonverbal Intelligence: Second Edition. In: McCallum, R. (eds) Handbook of Nonverbal Assessment. Springer, Cham. https://doi.org/10.1007/978-3-319-50604-3_10
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