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NNAT Scores | Understand Your Child’s Results

The NNAT® and NNAT®3 tests are scored based on your child’s age (not grade level, even though that’s how these tests are typically administered).

Steps Used to Calculate the NNAT Score:

  • Raw Score. This is total number of questions answered correctly; since 48 questions are asked on the NNAT®3, a 25/48 indicates your child correctly answered 25 questions.
  • Naglieri Ability Index (NAI). After the Raw Score is determined, it’s converted to a normalized standard score known as the Naglieri Ability Index (NAI) by comparing your child’s results against scores earned by other students born within a three-month age range. The highest possible NAI score is 160 and an average score is 100; however, NAI scores are normalized so that 68% of general education students score within the 84-116 range.
  • Percentile Rank (PR). School districts use this number to compare each student’s individual test performance against a nationwide sampling of students born within the same three-month age range. A percentile rank of 80 means that child’s score was higher than 80% of students tested nationwide, and the PR ranges from 1-99.

Since each district uses a different set of criteria to determine eligibility for admission into their gifted and talented programs, there is no standard NNAT or NNAT3 score required to qualify; instead, we recommend contacting your child’s school for more information. Detailed score reports should arrive in the mail approximately two months after your child’s tested.

Tell Us Your Experiences

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2 Responses

kat says:

My son recently scored a 94 on the NNAT. he is going into 4th grade. Our district has a cut off for GATE at 98. Doesn’t this seem unreasonably high?

edlira says:

My son scaled score on NNAT is 143 and the percentile is 99%. I don’t know how to interpret this scores, he is going in 6th grade. Are this good scores?

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