CogAT vs. NNAT vs. OLSAT: Which Gifted Test Does Your Child Take?
April 5, 2026 · 6 min read
If you've started researching gifted program admission, you've probably seen three test names: CogAT, NNAT, and OLSAT. They all aim to identify gifted students, but they measure different things and are used by different districts. Here's how to tell them apart.
| Test | Full Name | Publisher | What It Tests |
|---|---|---|---|
| CogAT | Cognitive Abilities Test | Riverside Assessments | Verbal, non-verbal, and quantitative reasoning |
| NNAT | Naglieri Nonverbal Ability Test | Pearson | Non-verbal reasoning only (no language required) |
| OLSAT | Otis-Lennon School Ability Test | Pearson | Verbal and non-verbal reasoning |
CogAT — The Most Common
The CogAT is used by more US school districts than any other gifted assessment. It tests three batteries: verbal, non-verbal, and quantitative. Scores are reported both per-battery and as a composite. Districts that want a comprehensive picture of reasoning ability — not just one type — tend to use the CogAT.
Common districts: Many districts across Illinois, Texas, Ohio, Virginia, and others.
NNAT — Non-Verbal Only
The NNAT uses only visual reasoning tasks — no words at all. This makes it popular in districts with large English Language Learner populations, where a verbal test would disadvantage non-native speakers. It's also used as a supplementary measure.
If your district uses the NNAT, focus your preparation entirely on non-verbal figure reasoning: matrices, spatial visualization, and pattern detection.
OLSAT — Verbal + Non-Verbal
The OLSAT covers verbal and non-verbal reasoning but omits the quantitative battery. It is commonly used in New York City (for the G&T program) and a number of other large districts. The format is similar to CogAT verbal and non-verbal sections.
How to Find Out Which Test Your District Uses
- Check your school district's gifted program page — most publish this information
- Contact your child's school office and ask which assessment is used for gifted screening
- Search "[your school district] gifted program assessment"
If your district uses the CogAT (the most common), TestPrepKids covers all three batteries with grade-level questions and detailed explanations.