ISEE vs SSAT: Choosing the Right Private School Entrance Exam

If your child is applying to a selective private school in Canada or the United States, they will probably need to write either the ISEE or the SSAT. Hundreds of independent schools accept these two entrance exams, including US boarding schools such as Phillips Exeter Academy and Andover. Canadian schools vary: for 2027 entry Branksome Hall accepts the SSAT or its own entrance test, while Upper Canada College, Havergal College and Crescent School use their own assessments. For many families the question is less "how do we prepare?" than "which test should we take?" Knowing how the ISEE and SSAT differ can help you make a strategic choice that gives your child the best chance of admission.

How the ISEE and SSAT differ

The ISEE (Independent School Entrance Exam) and the SSAT (Secondary School Admission Test) are the two most widely accepted private school entrance exams in North America. Both assess verbal reasoning, quantitative ability, reading comprehension and writing, but they differ in structure, scoring method and overall difficulty.

E3n, the nonprofit formed from the merger of the Educational Records Bureau (ERB) and the Enrollment Management Association, now runs both exams. The ISEE comes at four levels, set by the grade a student is applying to: Primary (grades 2-4), Lower (grades 5-6), Middle (grades 7-8) and Upper (grades 9-12). The SSAT has three levels: Elementary (grades 3-4), Middle (grades 5-7) and Upper (grades 8-11).

Many top private schools take both exams, but some clearly prefer one. Researching your target schools before you register is an essential first step.

How the two exams are structured

At a high level the formats look alike, but the differences below directly affect how your child should prepare.

Feature ISEE (Upper Level) SSAT (Upper Level)
Total testing time 2 hours 40 minutes, plus two 10-minute breaks About 2 hours 50 minutes, or 3 hours 10 minutes with two breaks
Sections Verbal Reasoning, Quantitative Reasoning, Reading Comprehension, Math Achievement, Essay Writing Sample, Quantitative (x2), Reading, Verbal, plus an unscored experimental section
Analogies No analogies tested Yes, analogies are a key verbal component
Math content Number operations, algebra, geometry, measurement, data analysis and probability (no calculus) Arithmetic, elementary algebra and geometry
Guessing penalty No penalty for wrong answers 1/4 point deducted per wrong answer
Score scale 760-940 per section; stanine 1-9 500-800 per section; percentile rank

The guessing penalty is among the biggest structural differences. Because the SSAT takes away a quarter point for each wrong answer, pacing and choosing which questions to answer carry more weight. The ISEE has no penalty for incorrect answers, which changes how students should handle questions they are unsure of.

How each exam is scored

The two exams use different scoring systems, and understanding them helps set realistic expectations for your child's preparation.

On the ISEE Upper Level, students get a scaled score between 760 and 940 for each of the four scored sections. That performance is then compared with other students in the same grade who took the ISEE in the past three years, producing a stanine from 1 to 9. Most competitive private schools look for a stanine of 7 or above, which puts a student in the top 23% of test-takers. Highly selective schools may expect an 8 or 9.

The SSAT Upper Level uses a scaled range of 500 to 800 per section, for a combined total between 1500 and 2400. Scores are shown as percentiles against first-time test takers in the same grade over the past three years. Schools do not publish cutoffs, but many admissions advisers see the 75th percentile or higher as competitive and the 85th or higher as the target for the most selective schools.

Both exams measure students against a highly motivated, self-selected pool of applicants, so strong scores take deliberate preparation, not just good performance at school.

Which schools accept the ISEE and which the SSAT?

Most top private schools in Canada and the United States accept both exams. Some have preferences worth knowing before you register.

  • Schools that accept both: Many US boarding schools take either exam. Phillips Andover, for example, accepts the Upper Level SSAT or ISEE (and also the PSAT, SAT or ACT).
  • Schools with their own assessments: For 2027 entry, Upper Canada College, Havergal College and Crescent School assess applicants with their own tests, and Branksome Hall accepts the SSAT or its own entrance test, with no preference given.
  • Schools that lean toward one test: Some schools favor one exam, and several New England boarding schools have historically favored the SSAT. Always confirm with each school's admissions office.

The safest course is to read the admissions requirements page of every school on your child's list before committing to one exam.

Which exam should your child take?

The right exam depends on your child's academic strengths, the schools they are targeting and how much time they have to prepare. Experienced private school admissions tutors say the most dependable way to decide is to take a full-length timed practice test of each exam and compare.

Consider the ISEE if your child:

  • Is strong in math, including algebra and geometry
  • Prefers a test with no guessing penalty
  • Is applying to schools that accept or prefer the ISEE
  • Has a tighter preparation timeline and needs a more straightforward test structure

Consider the SSAT if your child:

  • Is strong in verbal reasoning and comfortable with analogy-style questions
  • Can use strategic test-taking skills, including when to skip or guess
  • Is mainly targeting New England boarding schools
  • Has more time to prepare and responds well to strategy coaching

How to prepare for the ISEE or SSAT

Families who start ISEE or SSAT preparation 3 to 6 months ahead consistently reach stronger scores than those who begin in the last weeks. Both tests reward systematic, steady practice over time.

Effective preparation includes:

  1. Diagnostic testing: Take a full-length timed practice test to set a baseline score and find weak areas in math, vocabulary or reading.
  2. Targeted skill-building: Fix vocabulary gaps and weak math concepts before moving to full test simulations.
  3. Regular practice sessions: Working on exam skills three to five days a week in focused 30-45 minute blocks beats occasional long sessions.
  4. Vocabulary development: Both exams test sophisticated vocabulary. Students preparing for the SSAT should also study common analogy patterns and word relationships.
  5. Timed section practice: Pacing is critical on both exams. Regular timed practice builds the speed and composure needed on test day.

A tutor who specializes in private school entrance exams can speed this up considerably. For students applying to competitive schools, personalized instruction helps strengthen weak areas and also builds the exam confidence that turns into higher scores. See our tutoring services to learn how Bosen Academics supports students through private school admissions.

Choosing the right entrance exam and preparing strategically can make a real difference to your child's application, whether the goal is a Canadian independent school or a prestigious US boarding school. Book a free consultation with Bosen Academics to build a personalized plan that targets the right exam and maximizes your child's scores.

Frequently asked questions

Can my child take both the ISEE and the SSAT?

Yes. Many families register for both and send the higher score to schools that accept either. This works well when there is enough preparation time and the goal is to widen admissions options.

How many times can a student take the ISEE or SSAT?

The ISEE can be taken once per testing season, and there are three seasons a year: fall (August to November), winter (December to March) and spring/summer (April to July). Middle and Upper Level SSAT students can take all six Standard Saturday tests in a testing year, plus one Flex test, one SSAT at Home and Prometric tests, and families choose which test's scores to send to each school. Either way, thorough preparation before the first attempt is the best strategy.

What is a good ISEE score for private school admissions?

It depends on the school. Most competitive private schools look for stanines of 7 or above on each section, which puts a student in the top 23% of test-takers. Highly selective schools typically expect 8 or 9.

What is a good SSAT score for private school admissions?

Schools do not publish cutoffs, but for most competitive private schools a score at or above the 75th percentile is strong, and highly selective schools often look for the 85th percentile or higher.

When should my child start preparing for the ISEE or SSAT?

Most private school admissions experts suggest starting at least 3 to 6 months before the exam date. Starting earlier leaves time to build vocabulary, strengthen math and develop test-taking strategy without a looming deadline.

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