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.

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.

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.

See also

• Educational psychology
  Educational psychology
  Educational psychology is the study of how humans learn in educational settings, the effectiveness of educational interventions, the psychology of teaching, and the social psychology of schools as organizations. Educational psychology is concerned with how students learn and develop, often focusing...
  
  
• School psychology
  School psychology
  School psychology is a field that applies principles of clinical psychology and educational psychology to the diagnosis and treatment of children's and adolescents' behavioral and learning problems...
  
  
• Intelligence quotient
  Intelligence quotient
  An intelligence quotient, or IQ, is a score derived from one of several different standardized tests designed to assess intelligence. When modern IQ tests are constructed, the mean score within an age group is set to 100 and the standard deviation to 15...
  
  
• Cognitive test
  Cognitive test
  Cognitive tests are assessments of the cognitive capabilities of humans and animals. Tests administered to humans include various forms of IQ tests; those administered to animals include the mirror test and the T maze test...
  
  
• Otis-Lennon School Ability Test
  Otis-Lennon School Ability Test
  The Otis–Lennon School Ability Test , published by the successor of Harcourt Assessment — Pearson Education, Inc., a subsidiary of Pearson PLC — is a test of abstract thinking and reasoning ability of children pre-K to 18...
  
   (OLSAT)
• Wechsler Intelligence Scale for Children
  Wechsler Intelligence Scale for Children
  The Wechsler Intelligence Scale for Children , developed by Dr. David Wechsler, is an individually administered intelligence test for children between the ages of 6 and 16 inclusive that can be completed without reading or writing...
  
   (WISC)
• Stanford Binet
• Cognitive Assessment System
  Cognitive Assessment System
  The Das-Naglieri Cognitive Assessment System test is a test given to school children to assess their cognitive strengths and weaknesses.- History :...
  
   (CAS)
• Cognitive Abilities Test
  Cognitive Abilities Test
  The Cognitive Abilities Test is a K–12 assessment designed to measure students’ learned reasoning abilities in the three areas most linked to academic success in school: Verbal, Quantitative and Nonverbal...
  
   (CogAT, CAT)
• Raven's Progressive Matrices
  Raven's Progressive Matrices
  Raven's Progressive Matrices are non-verbal multiple choice measures of the reasoning component of Spearman's g , which is often referred to as general intelligence. The tests were originally developed by John C. Raven in 1936...
  
  

External links

• Mercer Publishing full-length NNAT practice tests