OLSAT vs CogAT: Which Gifted Test Does Your District Use?

If your child is being screened for a gifted program and you're not sure whether to prepare for the OLSAT or the CogAT, you're not alone. Both tests are widely used, frequently referenced together in parent conversations about gifted admissions, and share the goal of measuring cognitive reasoning ability independent of school achievement. But they are distinct tests with different structures, different publishers, and different geographic footprints. Preparing for the wrong test — or preparing for both without understanding how they differ — wastes valuable time.

OLSAT: Structure and Basics

The Otis-Lennon School Ability Test (OLSAT) is published by Pearson. It has been in use in various forms since 1918, making it one of the oldest group-administered scholastic ability tests in the United States. The current edition (OLSAT-8) divides questions into two broad sections:

• Verbal section: Includes aural reasoning (for young children), following directions, sentence completion, verbal analogies, verbal classification, and logical selection. At higher levels, the verbal section also tests inferential reasoning and complex word relationships.
• Nonverbal section: Includes picture analogies, picture classification, figural analogies, figural classification, pattern matrices, and quantitative reasoning (number series and number inference).

The OLSAT has 7 levels (A through G), spanning kindergarten entry through grade 12. Total questions per level: 40. Testing time varies by age — at Level A (youngest children), the test is administered orally and takes approximately 30–40 minutes. At higher levels, testing time runs 40–60 minutes.

Scores are reported as a School Ability Index (SAI) — a normalized standard score with mean 100 and standard deviation 16 — plus a percentile rank and a stanine.

CogAT: Structure and Basics

The Cognitive Abilities Test (CogAT) is published by Riverside Insights (a subsidiary of Houghton Mifflin Harcourt). Currently in Form 8 (with Form 7 still in active use in many districts), the CogAT is structured as three distinct batteries rather than two sections:

• Verbal Battery: Picture analogies, sentence completion, and verbal classification (at lower levels); verbal analogies, sentence completion, and verbal classification (at higher levels).
• Quantitative Battery: Number analogies, number puzzles (applied arithmetic), and number series. This battery is absent from the OLSAT as a standalone component — the OLSAT includes number reasoning within the nonverbal section rather than as a separate battery.
• Nonverbal Battery: Figure matrices, paper folding, and figure classification. This battery focuses more heavily on spatial manipulation and visualization than the OLSAT's nonverbal section.

The CogAT has 14 levels spanning kindergarten through grade 12. It contains 9 subtests (3 per battery), and the number of questions varies by level — typically 170 questions for Grade 3 and above, fewer at earlier levels. Testing time for the full battery runs approximately 90–120 minutes across multiple sessions for older students.

Scores are reported as a Standard Age Score (SAS) — similar in structure to an SAI — plus percentile ranks and stanines for each battery and for a composite. Crucially, the CogAT also produces a score profile (often written as V/Q/N) showing the relative strengths of the three batteries, which the OLSAT does not provide at the same level of granularity.

Side-by-Side Comparison

OLSAT: Advantages and Best Use Cases

Geographic Distribution: Where Each Test Is Used

Understanding which test your district uses is the single most important question before beginning preparation. Preparing for the wrong test wastes months of effort.

Where the OLSAT Is Used

The OLSAT's geographic footprint is concentrated and relatively narrow:

• New York City: The NYC DOE uses the OLSAT (combined with the NNAT) for its Gifted and Talented program — the largest urban gifted program in the United States. This accounts for a significant portion of all OLSAT administrations nationally.
• New York State (outside NYC): Some districts in Long Island, Westchester, and upstate New York use the OLSAT for gifted screening.
• New Jersey and Connecticut: A smaller number of districts in the NYC metro area use the OLSAT, particularly in suburban communities that mirror NYC's demographic patterns.
• Other states: A handful of districts scattered across the country use the OLSAT, but it is not the dominant choice outside the Northeast.

Where the CogAT Is Used

The CogAT is the most widely used gifted screener in the United States by a significant margin:

• Midwest and South: Illinois, Ohio, Indiana, Texas, Virginia, Georgia, North Carolina, and Florida all have large school systems that use the CogAT as the primary gifted identification tool.
• West Coast: California, Oregon, and Washington districts frequently use the CogAT, though practice varies by district.
• National reach: Because Riverside Insights markets the CogAT as a universal tool for identifying academic potential — not just gifted placement — it is used for class placement, intervention identification, and program screening in districts of all sizes across all 50 states.

How to Find Out Which Test Your District Uses

If you are not certain which test your child will take, here are the most reliable ways to find out:

• Check your district's website: Look for "Gifted and Talented," "Advanced Learning," or "Enrichment" program pages. Testing details are usually listed there.
• Contact the district's gifted coordinator: Every public school district that runs a gifted program has a gifted/advanced learning coordinator. A single phone call or email will give you a definitive answer.
• Ask your child's teacher or the school office: Teachers are often familiar with the specific assessment used in their building's testing cycle.
• Check the test registration notice: If your district sends home a registration or consent form for gifted screening, the test name is typically printed on that form.

Do not assume based on geography alone. Some NYC-area districts outside the five boroughs use the CogAT rather than the OLSAT. And some districts that have historically used one test switch to the other without much publicity. Always verify for the current school year.

Prep Approach: What Overlaps and What Doesn't

If you know which test your child will take, you can target preparation efficiently. Here is what overlaps between the two tests and what is unique to each:

Skills That Transfer Between Both Tests

• Verbal analogies (A is to B as C is to ___)
• Verbal classification (finding the word that doesn't belong)
• Figural/nonverbal analogies using shapes and patterns
• Figural series and pattern completion
• Listening comprehension and direction-following (for young children)

Skills Unique to the OLSAT (not on CogAT)

• Sentence completion in the verbal section (OLSAT-specific phrasing)
• Logical selection questions (identifying the logically valid conclusion)
• Inference questions in the verbal section

Skills Unique to the CogAT (not prominently on OLSAT)

• Quantitative battery: number analogies (is 5 to 10 as 3 is to ___?)
• Number puzzles (applied arithmetic reasoning)
• Paper folding / spatial visualization (Form 8 Nonverbal battery)
• Figure matrices requiring multi-step rule extraction

The practical implication: if your child is taking the CogAT, they need quantitative reasoning practice that OLSAT prep will not cover. If your child is taking the OLSAT, they do not need to prepare for CogAT's paper-folding or number puzzles — but they should make sure they are comfortable with logical selection and inference questions that the CogAT does not test.