ISEE vs. SSAT: The NYC Private School Admissions Guide

Why NYC Private School Admissions Starts With a Test You Didn't Choose

Every September, families from the Upper East Side to Park Slope sit down with admissions consultants and face a question that catches many off guard: ISEE or SSAT? In New York City's independent school market — where Trinity School and Brearley each admit fewer than 15 percent of applicants — the standardized test is no formality. It is one of three pillars alongside transcript and interview, and in most cases your child's target schools have already made the choice for you.

This guide is for parents of rising 5th through 9th graders navigating that decision for the 2025–26 or 2026–27 admissions cycle. We cover which test each major school requires, how scoring works, what a competitive score actually looks like, and how to build a prep plan calibrated to the real deadline on your calendar.

ISEE vs. SSAT: A Side-by-Side Comparison

The two tests are administered by organizations with different philosophies and different geographic centers of gravity. The ISEE (Independent School Entrance Exam) is owned and administered by ERB (Educational Records Bureau), headquartered in Midtown Manhattan. The SSAT (Secondary School Admission Test) is run by the EMA (Enrollment Management Association), based in Princeton, New Jersey.

Both assess verbal reasoning, reading comprehension, and mathematics — but the mechanics differ in ways that directly affect strategy.

The guessing penalty is the single biggest tactical difference. On the ISEE, students should attempt every question — an unanswered question and a wrong answer both score zero. On the SSAT, strategic omission on questions where a student is genuinely uncertain can protect the percentile score. That single rule changes how students should be drilled in practice.

SSAT verbal sections also feature analogies, a format that rewards deep, nuanced vocabulary in ways the ISEE's synonym-and-sentence-completion structure does not. Students with strong reading backgrounds often find SSAT verbal more demanding; students with stronger math reasoning sometimes prefer the SSAT's more direct quantitative problems.

Which NYC Schools Require Which Test

In practice, the school list drives the test decision — not the other way around.

Schools that require or strongly prefer the ISEE:

• Manhattan: Dalton, Trinity, Brearley, Spence, Chapin, Collegiate, Nightingale-Bamford, Browning
• Bronx/Riverdale: Horace Mann, Riverdale Country School, Ethical Culture Fieldston School
• Brooklyn: Berkeley Carroll, Packer Collegiate, and Poly Prep (all accept either test)

Schools that are test-optional or SSAT-friendly:

• Saint Ann's (Brooklyn Heights) — test-optional
• Friends Seminary (East Village) — test-optional since 2021
• Grace Church School, LREI, Calhoun, Avenues — test-optional for 2025–26

The practical implication is straightforward. A family with a list centered on Trinity, Brearley, and Dalton has one answer: register for the ISEE and build accordingly. A family also considering boarding schools like Andover or Exeter will likely need the SSAT in addition. A purely NYC day-school applicant rarely needs both.

ISAAGNY (Independent Schools Admissions Association of Greater New York) coordinates application timelines for approximately 40 member schools, nearly all of which accept or require the ISEE.

The 2025–26 NYC Admissions Timeline

Most families underestimate how compressed the admissions calendar is. The window between "we should start prepping" and "test day" is shorter than it looks in the spring.

• May–June 2025: Run a baseline diagnostic. Confirm which test each target school requires. (GeniusPrep's $150 diagnostic consultation includes a full-length proctored practice test and a detailed score-gap analysis.)
• June–August 2025: Primary prep window. Students preparing for top-tier schools typically complete 30–60 hours of structured work over the summer.
• September 2025: ISAAGNY Open Houses begin — Trinity, Dalton, and Brearley typically hold theirs in late September or early October. Attend before applications open.
• October 2025: First official ISEE test date. ERB's NYC testing sites fill quickly; register by mid-August.
• November 2025: Peak testing month. Most ISAAGNY applications are due between mid-November and mid-December via Ravenna.
• December 2025: Interview and tour season runs in parallel. Students who need a second ISEE attempt should schedule it now.
• January 2026: Final interviews; teacher recommendations finalize; third ISEE attempt if warranted.
• February 13, 2026: Traditional ISAAGNY notification date — the "Friday in early February" when most member schools release decisions simultaneously. Confirm the exact date with each school directly.
• Late February 2026: Families typically have roughly 10 days to respond to offers.

Families who begin diagnostic work in September find themselves cramming before October test dates with no buffer for a retake. The calendar does not forgive a slow start.

Understanding ISEE and SSAT Score Reports

ISEE stanines are the number schools actually see. The scaled scores (760–940 per section) exist internally, but stanines — not scaled scores — are what lands in front of an admissions director.

• 1–3: Below average
• 4–6: Average
• 7–9: Above average

Competitive applicants for schools like Trinity, Brearley, and Collegiate typically present stanines of 8 or 9 across all four scored sections (Verbal Reasoning, Quantitative Reasoning, Reading Comprehension, Mathematics Achievement). There is no published cutoff — scores are read holistically alongside transcripts, teacher recommendations, and the interview — but a profile heavy in 6s and 7s is a real disadvantage at schools admitting one in ten applicants.

SSAT percentiles are routinely misread. The SSAT benchmarks scores against a three-year rolling pool of fellow applicants, not against the general student population. Because many SSAT test-takers are themselves highly prepared candidates, a 70th percentile score is more competitive than it looks. Boarding schools generally look for the 85th percentile and above; the most selective programs expect 90th or higher.

For families applying to ERB-member schools, the Individual Score Report provides a section-by-section breakdown that admissions officers review alongside transcripts and recommendations.

How to Prep: A Step-by-Step Framework

Our ISEE prep program is built around the following framework, which applies regardless of which test a student is targeting.

1. Take a full-length diagnostic 8–10 months before test day. Do not start content review before you know where the gaps are. A cold, timed, proctored test gives you the most accurate baseline and helps determine whether the ISEE or SSAT is the better fit.

2. Lock in the school list before committing to a test. Use an admissions consultant or the Parents League of New York resource library to confirm test requirements for every school under consideration.

3. Set section-specific target stanines per school. "Do well" is not a study plan. "Reach stanine 8 in Verbal Reasoning from a current stanine 6 by October" is.

4. Choose a prep format. The options in NYC range considerably:

   • Group classes: $1,200–$2,500 for 8–12 weeks; appropriate for students 2–3 stanines below target with no severe skill gaps.
   • 1:1 tutoring: $200–$450/hour at Manhattan market rates; standard for families targeting highly selective schools where score ceilings matter.
   • Hybrid: A group class for content coverage paired with individual sessions for pacing and strategy.
   • Self-study: ERB's official materials, Ivy Global, and Test Innovators are strong standalone resources at $25–$120.

5. Build vocabulary over months, not weeks. ISEE verbal and SSAT analogy sections reward the kind of word knowledge that accumulates over 6–8 months of consistent daily practice. Flashcard apps paired with wide reading reliably outperform intensive cram sessions.

6. Complete 4–6 full-length, proctored practice tests before the real exam. Endurance and pacing under timed conditions are skills distinct from content mastery and require their own training.

7. Schedule the first official attempt in October to preserve the December sitting as a genuine, unhurried retake.

8. Rest in the 48 hours before the exam. No new content. The confidence built over months of preparation is the variable most within a family's control at that point.

GeniusPrep's 1:1 sessions start at $125/hour and are built around the diagnostic-driven plan above, with tutors at our Flatiron office at 928 Broadway, Suite 1206, and via virtual sessions.

What Prep Costs in NYC

Budget separately for test registration fees ($155–$295 per sitting) and ISAAGNY application fees ($50–$75 per school). Three ISEE attempts plus applications to eight schools adds another $550–$900 in direct costs. The NCES Private School Universe Survey documents that NYC-area independent school tuition now averages well above $50,000 per year — the broader financial context in which families approach prep investment decisions.

Practical Tips for NYC Families

• Register early. ERB NYC test sites fill weeks in advance. Waiting until September to register for October is a gamble on seat availability.
• Use Ravenna Hub from the start. Nearly all ISAAGNY schools receive applications through Ravenna. Create the account before Open Houses begin in September.
• Don't overtest. Under current ERB rules, schools can see all ISEE attempts within a cycle. Two well-prepared sittings consistently outperform four anxious ones.
• Attend Open Houses before applications open. Admissions directors at Horace Mann and Riverdale Country note that demonstrated, substantive interest is visible throughout the evaluation process — it is not just a box to check.
• If boarding schools are on the list, plan for the SSAT separately. A student applying to both Dalton and Exeter needs an ISEE plan and an SSAT plan. The content overlaps, but the strategies diverge. Our prep resources cover both tracks.
• New to the independent school world? The NYC DOE's nonpublic school guidance provides useful orientation on how independent schools operate relative to the public system — particularly helpful for families transitioning from district schools.
• Learn more about GeniusPrep's approach if you'd like context on how we structure programs before scheduling a consultation.

Frequently Asked Questions

Do all NYC private schools require the ISEE? No. Most ISAAGNY member day schools — Trinity, Brearley, Dalton, Spence, Collegiate, Horace Mann — require the ISEE. Saint Ann's in Brooklyn Heights, Friends Seminary in the East Village, and Grace Church School are test-optional for 2025–26. Boarding schools, including those outside New York State, generally require the SSAT instead. Confirm requirements directly with each school annually, as policies do change.

Can my child take both the ISEE and SSAT? Yes, and some families do — but it is rarely necessary. Taking both tests makes sense only when a student is applying to NYC ISAAGNY day schools and out-of-state boarding programs simultaneously. For families whose entire school list is ISAAGNY day schools, preparing for two different tests divides limited study time without meaningful benefit.

When should we start preparing for the ISEE or SSAT? Most NYC tutors and admissions consultants recommend beginning structured prep 6–9 months before the target test date. For a November 2025 sitting, that means starting no later than spring 2025. Students with larger score gaps benefit from beginning earlier, particularly if vocabulary is a significant weakness.

How many times can my child retake the ISEE? As of 2022, ERB allows three ISEE attempts per 12-month admissions cycle — one per testing season (August–November, December–March, April–July). Schools receive all scores unless the family opts not to send them. Two well-prepared attempts are almost always more effective than three or four hurried ones.

What ISEE score do schools like Trinity or Brearley expect? Neither school publishes a cutoff. Competitive applicants at the most selective ISAAGNY schools typically present stanines of 8 or 9 across all four sections. Scores are read holistically alongside grades, recommendations, and the interview — but a weak stanine profile is genuinely difficult to overcome with other application elements alone.

Is the SSAT harder than the ISEE? Students' experiences vary by profile. The SSAT's analogy-based verbal section and guessing penalty tend to be more punishing for students who haven't built vocabulary over time. The ISEE's Quantitative Reasoning section, which emphasizes logic-based problem solving over pure computation, catches many students off guard. Neither test is categorically harder; the right match depends on the individual student's strengths.

What are the application deadlines for NYC private schools for fall 2026 entry? Most ISAAGNY schools have application deadlines between mid-November and mid-December 2025, with the traditional unified notification date in early February 2026. Confirm exact deadlines directly with each school — individual due dates vary by program and grade level.

How do we get started if we are new to this process? Begin with a baseline diagnostic to establish where your child actually stands, then use the Parents League of New York and ISAAGNY's member school directory to map test requirements across your school list. GeniusPrep offers a $150 diagnostic consultation that includes a full-length proctored practice test and a one-hour strategy session — a concrete starting point before committing to a full prep program.

Sources

• ERB (Educational Records Bureau) — Official ISEE information and registration
• EMA / SSAT — Official SSAT registration and test dates
• ISAAGNY (Independent Schools Admissions Association of Greater New York) — Member schools and admissions calendar
• NCES Private School Universe Survey — New York State private school enrollment data
• Parents League of New York — Independent school guidance for NYC families

Reviewed by the GeniusPrep Tutoring Team — last updated 2026-06-20.

Related reading

• NYC ISEE vs. SSAT: The 2026 Private School Prep Guide
• ISEE & SSAT Prep in NYC: A 2026–27 Parent's Guide
• ISEE vs SSAT for NYC Private Schools: 2026 Parent Guide