Naglieri Nonverbal Ability Test

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The Naglieri Nonverbal Ability Test (NNAT) is a nonverbal measure of general ability designed by Jack A. Naglieri and published by Pearson Education. [1] The Naglieri Nonverbal Ability Test - Individual Form was first 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. The most current version is NNAT3.[1] Like all nonverbal ability tests, the NNAT is intended to assess cognitive ability independently of linguistic and cultural background.[1]

Present use[edit]

These tests may be 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.[1]

NNAT and the media[edit]

Beginning in the 2012-13 school year, the Naglieri Nonverbal Ability Test- 2nd Edition (NNAT-2) replaced the Bracken School Readiness Assessment (BSRA).[2]

The decision sparked some degree of controversy[why?][3] The NNAT-2 is considered[by whom?] significantly harder than the Bracken School Readiness Assessment (BSRA) which it replaced.

In New York City, the NNAT-2 makes up 50% of the gifted and talented exam, the other 50% is the Otis–Lennon School Ability Test (OLSAT).[citation needed]


The NNAT has been found by 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.[4]

See also[edit]


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  3. ^ "Archived copy". Archived from the original on 2013-01-21. Retrieved 2013-02-15.CS1 maint: archived copy as title (link)
  4. ^ 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