CogAT scores explained without fake cutoffs

Official-source status

Claims were verified against official Riverside Insights and PGCPS sources on July 1, 2026. If your district uses CogAT, confirm the current screening rule with that district before acting on any score.

Start with the Standard Age Score.

Riverside describes the CogAT Standard Age Score, or SAS, as a normalized standard score with a mean of 100 and a standard deviation of 16. It is available for each battery and for the composite where that composite is reported.

The SAS is age-based. It is meant to compare the rate and level of reasoning development with students of the same age, not to show the percent of questions correct.

A percentile is a rank. A stanine is a broad band.

Riverside defines percentile rank as a 1-99 score that indicates how many students in the same age or grade group scored lower. A percentile rank of 90 does not mean 90 percent correct; it means the score ranked above most students in the comparison group.

Stanines compress performance into nine broad groups, with 5 as the average value. They are easy to scan, but they are less detailed than the SAS and should not be treated as a district cutoff unless your district says so.

Age percentile, grade percentile, and local percentile are different comparisons.

CogAT reports can show age, grade, and local comparisons. Age norms compare a student with a national sample of students in the same age group. Grade norms compare with students in the same grade group. Local norms, when used, compare with students in the same district or school group.

That distinction matters. A child can look different against age peers, grade peers, and local peers, especially in districts with many high-scoring students.

Read the batteries before you over-read the composite.

The CogAT batteries are Verbal, Quantitative, and Nonverbal. A composite can be useful as a broad summary, but it can hide a pattern: a child may be much stronger in one battery than another.

Riverside's Individual Profile Narrative Report sample shows scores for Verbal, Quantitative, Nonverbal, and Composite (VQN), along with age, grade, and local score sections. If your report has all of those columns, read the comparison label before comparing numbers.

Decode the ability profile code carefully.

Riverside says the ability profile captures both the level and the pattern of a student's scores. In a code such as 9A, the number is the median age stanine and the letter describes the score pattern. Riverside lists 9A as very high scores on all three batteries.

Letters such as B, C, or E signal uneven score patterns. Battery letters add detail: V means Verbal, Q means Quantitative, and N means Nonverbal. A plus sign marks a relative strength; a minus sign marks a relative weakness. A code like 5C (V+ N-) is not just "average"; it says the profile has a verbal strength and nonverbal weakness within an overall average level.

What counts as "good" depends on the use.

For instruction, a "good" score is one that helps adults understand how the child reasons. For gifted screening, the practical meaning depends on local policy. Riverside publishes the test and score meanings; districts decide how CogAT fits into screening.

PGCPS, for example, publicly says CogAT is administered to all grade 4 students and selected grade 5 students, and that CogAT is one factor for TAG eligibility. That does not create a national CogAT cutoff. It is one district's documented process.

When the report seems surprising

1. Check whether the report is showing age, grade, or local percentiles.
2. Compare the three batteries before focusing on the composite.
3. Read the ability profile as a pattern, not just a high/low label.
4. Find your district's current gifted-screening page for retest, referral, and appeal rules.
5. Ask the school what additional evidence can be considered if the score does not match classroom work.

Keep the pages straight

Official sources used

Claims were verified against these official sources on July 1, 2026.

1. Riverside Insights — CogAT score descriptions
2. Riverside Insights — CogAT ability profiles
3. Riverside Insights — Individual Profile Narrative Report PDF
4. PGCPS — Elementary and Middle School Assessment