The Naglieri Nonverbal Ability Test, or NNAT, is a popular cognitive ability test that is used to measure the intelligence of children from preschool to grade 12. It was developed by Jack Naglieri, Ph.D., a renowned expert in the field of psychology and education. The NNAT is unique in that it is a nonverbal test, … Continue reading What is NNAT Test (Naglieri Nonverbal Ability)?