The ISEE — Independent School Entrance Exam — is not one test. It's four distinct exams, each designed for a different age group. Before your child opens a single practice book, you need to know which level they're taking. The format, timing, and content vary significantly from one level to the next.
This guide breaks down each level so you know exactly what to expect.
What Is the ISEE and Who Administers It?
The ISEE is administered by the Educational Records Bureau (ERB), a nonprofit organization that has worked with independent schools since 1927. Private and independent schools use ISEE scores as one component of the admissions process.
The test has four levels:
| Level | For Students Entering Grades... |
|---|---|
| Primary | 2, 3, or 4 |
| Lower | 5 or 6 |
| Middle | 7 |
| Upper | 8, 9, 10, 11, or 12 |
For a closer look at how scores from any level are reported, see our guide to ISEE stanine scores explained.
Which Level Does Your Child Take?
This is the single most common source of confusion — and getting it wrong means studying for the wrong test entirely.
Your child takes the level that corresponds to the grade they are ENTERING, not the grade they currently attend.
So a student finishing 6th grade and applying for 7th grade entry takes the Middle Level — not the Lower Level, which they might assume because they're in 6th grade now.
If your child is applying to start 7th grade next fall, they take the Middle Level ISEE. Their current grade doesn't determine the level — their destination grade does.
When in doubt, check with the school your child is applying to. They will specify which level they require.
Primary Level (Grades 2–4 Entry)
The Primary Level stands apart from the other three. It is designed for younger children and looks quite different in format.
Primary Level Sections
| Section | What It Measures |
|---|---|
| Auditory Comprehension | Listening to read-aloud passages and answering questions |
| Reading | Short passages with comprehension questions |
| Mathematics | Number sense, patterns, and basic operations |
| Writing Sample (Grade 4 only) | A brief written response |
The Auditory Comprehension section is unique to Primary — no other ISEE level includes it. A test proctor reads passages aloud, and students answer questions based on what they heard. This tests listening skills rather than independent reading.
Primary Level testing is also shorter and paced differently to account for younger students' attention spans.
Primary Level test-takers are still developing foundational skills. The test is designed to assess ability, not punish a child for being in second grade. Schools use these scores in context.
Lower Level (Grades 5–6 Entry)
Starting with the Lower Level, the ISEE shifts to a format that stays consistent through the Upper Level — five sections, all independently answered by the student.
Lower Level Sections
| Section | Questions | Time |
|---|---|---|
| Verbal Reasoning | 34 | 20 min |
| Quantitative Reasoning | 38 | 35 min |
| Reading Comprehension | 25 | 25 min |
| Mathematics Achievement | 30 | 30 min |
| Essay | 1 prompt | 30 min |
The Verbal Reasoning section includes two question types: synonyms and sentence completions. The Quantitative Reasoning section tests mathematical thinking and word problems, while Mathematics Achievement tests straightforward computation and math knowledge. These two math sections measure different things — see our guide on ISEE Quantitative vs. Math Achievement for a full breakdown.
The essay is not scored. Schools receive a copy and read it themselves, but it does not affect stanine scores.
Middle Level (Grade 7 Entry)
The Middle Level uses the same five-section structure as the Lower Level. The difference is in the difficulty and depth of the content, not the format.
Middle Level Sections
| Section | Questions | Time |
|---|---|---|
| Verbal Reasoning | 40 | 20 min |
| Quantitative Reasoning | 37 | 35 min |
| Reading Comprehension | 36 | 35 min |
| Mathematics Achievement | 47 | 40 min |
| Essay | 1 prompt | 30 min |
Middle Level math introduces pre-algebra and more complex word problems. Verbal content becomes denser, and reading passages are longer. Students entering 7th grade are typically 11–12 years old, and the content reflects that.
Upper Level (Grades 8–12 Entry)
The Upper Level is the most widely taken ISEE level. Students applying to boarding schools, competitive day schools, or high school programs overwhelmingly sit for the Upper Level.
Upper Level Sections
| Section | Questions | Time |
|---|---|---|
| Verbal Reasoning | 40 | 20 min |
| Quantitative Reasoning | 37 | 35 min |
| Reading Comprehension | 36 | 35 min |
| Mathematics Achievement | 47 | 40 min |
| Essay | 1 prompt | 30 min |
The structure mirrors the Middle Level, but the content is considerably harder. Upper Level math includes algebra, geometry, and some pre-calculus concepts. Reading passages draw from academic and literary texts. Vocabulary is more advanced, and wrong answers cost nothing — there is no penalty for guessing on any ISEE level.
The Upper Level is the same test whether your child is applying for 8th grade or 12th grade entry. Scores are normed against other students applying to the same grade, so the comparison is always within a peer group.
How Scores Are Compared Across Levels
Scores from different ISEE levels are not interchangeable. A stanine of 7 on the Middle Level does not mean the same thing as a stanine of 7 on the Upper Level, because each level is normed against its own cohort.
"Stanine" is short for standard nine — a scoring scale that divides test results into nine groups, from 1 (lowest) to 9 (highest). Schools evaluate ISEE scores primarily on the stanine scale, comparing your child's results to other students who took the same level in the same norm year.
This means a student who takes the wrong level — say, a student entering 7th grade who accidentally registers for the Lower Level — will produce scores that schools cannot properly evaluate. Always confirm the required level before registering.
Learn more about how scores work on our ISEE score calculator and the full score report guide.
When to Start Preparing
The right prep timeline depends on which level your child is taking and how much support they need.
| Level | Suggested Prep Window |
|---|---|
| Primary | 4–8 weeks for most students |
| Lower | 2–3 months |
| Middle | 3–4 months |
| Upper | 3–6 months |
Upper Level students applying to highly selective schools often benefit from longer timelines. Our 3-month ISEE study plan is built for Upper Level preparation and gives you a week-by-week schedule.
If you are not sure how ready your child is, a diagnostic test is the best first step. It tells you which sections need the most attention before you commit to a prep schedule.
How to Determine the Right Level
- Find out which grade your child is applying to enter (not their current grade).
- Match that entry grade to the level table at the top of this post.
- Confirm the required level directly with the school — most schools list this in their admissions requirements.
- Register through the ERB website for the correct level.
If your child is applying to multiple schools with different entry grades, confirm whether the schools share a level requirement or whether your child needs to test at different levels.
A Note on the SSAT
The ISEE is not the only entrance exam private schools accept. The SSAT (Secondary School Admission Test) has a similar level structure — Lower, Middle, and Upper — and many schools accept either test. For a comparison, see our guide on what is the SSAT and ISEE vs. SSAT: which test should your child take.
Next Steps
Once you know your child's level, you can move from planning to preparation.
- Take a diagnostic test to establish a baseline
- Start with practice questions that match your child's level
- Read our full guide on how to prepare for the ISEE
- Find out when your child should take the ISEE to plan test dates around the admissions calendar
Knowing the level is the foundation. Everything else — content, timing, strategy — builds from there.