NNAT

The Naglieri Nonverbal Ability Test (NNAT) is a nonverbal measure of general ability. There are three versions of this test. First is the Naglieri Nonverbal Ability Test - Individual Form published in 2004. Two versions were published in 2007 and 2008, respectively. This includes the group administered Naglieri Nonverbal Ability Test - Second Edition and the Naglieri Nonverbal Ability Test - Online version. Like all nonverbal ability tests, the NNAT is intended to assess cognitive ability independently of linguistic and cultural background.^{[citation needed]}

Present use

These tests are administered to K–12 school children on an individual or group basis as a means to identify potentially gifted children for placement in accelerated programs.^{[citation needed]}

Criticism

The NNAT has been found by at least one study to show excessive score variability, with within-grade standard deviations reaching as high as 20 points. This has the effect of both overrepresenting and underrepresenting index scores - that is, more students received very high or very low scores than expected. Lohman et al. found that 3.4 times as many students scored in the 130+ range on the NNAT as expected.^[1]

See also

• Educational psychology
• School psychology
• Intelligence quotient
• Cognitive test
• Otis-Lennon School Ability Test (OLSAT)
• Wechsler Intelligence Scale for Children (WISC)
• Stanford Binet
• Cognitive Assessment System (CAS)
• Cognitive Abilities Test (CogAT, CAT)
• Raven's Progressive Matrices

External links

• Mercer Publishing full-length NNAT practice tests

References

1. ^ Lohman, David F; Korb, Katrina K; Lakin, Joni (Fall 2008), "Identifying Academically Gifted English-Language Learners Using Nonverbal Tests: A Comparison of the Raven, NNAT, and CogAT", Gifted Child Quarterly (52): 275–296, doi:10.1177/0016986208321808