What the ISEE is and who administers it
This section explains the purpose of the ISEE, the organization that administers it and how schools use the results.
The ISEE (Independent School Entrance Exam) is a standardized test used in admission by U.S. independent schools, for students applying to grades 2 through 12. Independent school is the common U.S. term for a self-governing, nonprofit private school. The official materials state that more than 1,200 independent schools worldwide accept ISEE results.
Parents researching the test will encounter the following four names, which all refer to the same official system.
| Name | Meaning |
|---|---|
| ERB (Educational Records Bureau) | The organization that develops and operates the ISEE |
| EMA (Enrollment Management Association) | The organization that administers the SSAT |
| E3n | The nonprofit organization formed by the merger of ERB and EMA on March 1, 2026 |
| admission.org | The official website that currently handles ISEE registration, test instructions and score reports |
Note that the ISEE and the SSAT still use separate parent accounts, and families must register for each test separately.
The official materials state that schools use ISEE results as one basis for admission decisions, alongside other materials each school considers important. The ISEE is therefore one part of an application, not the only deciding factor. Preparation of the other materials is covered in independent school application materials.
Among the Orange County independent day schools that Irvine families often apply to, some list the ISEE as an application requirement, while others accept the SSAT or use their own assessment. School-by-school requirements are listed on ISEE school requirements.
How the ISEE differs from the SSAT and HSPT
This section explains how two other independent school admission tests differ from the ISEE.
| Test | Administrator or publisher | Intended students | Schools that use it |
|---|---|---|---|
| ISEE | E3n (developed and operated by ERB) | Leveled by the grade the student is applying to enter; for applicants to grades 2 through 12 | Independent schools |
| SSAT (Secondary School Admission Test) | E3n; in use since 1957 | Officially described as for students currently in grades 3 through 11 | Independent schools |
| HSPT (High School Placement Test) | Scholastic Testing Service | Students about to enter high school; relevant only to applicants to grade 9 | Testing arranged by each high school; common at Catholic high schools |
The ISEE and the SSAT also differ in question types, scoring and the number of attempts allowed per year. Some schools accept only the ISEE and some accept both, so families should check the requirements of their target schools before comparing the two tests. If an Irvine family’s list includes both independent day schools and Catholic high schools, the student may need to prepare separately for the ISEE and the HSPT.
A detailed comparison of the two tests and the steps for choosing between them are covered in choosing between the ISEE and the SSAT.
Four levels, six application-grade entry points
This section explains which level a student should take. This is the point on which parents most often make mistakes.
The official materials state that the test level is determined by “the grade to which the student is applying for admission,” that is, the grade the student is applying to enter, not the grade the student currently attends. The ISEE is officially divided into four levels: Primary, Lower, Middle and Upper. The Primary level is further divided into three versions for applicants to grades 2, 3 and 4, giving six application-grade entry points in total.
| Level | Applying to grade | Test content | Test time | Essay |
|---|---|---|---|---|
| Primary 2 | Grade 2 | Listening comprehension, reading, mathematics | 53 minutes, plus one break | None |
| Primary 3 | Grade 3 | Reading, mathematics | 54 minutes, plus one break | None |
| Primary 4 | Grade 4 | Reading, mathematics | 60 minutes, plus one break | None |
| Lower Level | Grades 5 to 6 | Four scored sections + essay | 2 hours 20 minutes, plus two breaks | Yes, unscored |
| Middle Level | Grades 7 to 8 | Four scored sections + essay | 2 hours 40 minutes, plus two breaks | Yes, unscored |
| Upper Level | Grades 9 to 12 | Four scored sections + essay | 2 hours 40 minutes, plus two breaks | Yes, unscored |
Source: official ERB ISEE materials.
For example, an Irvine student currently in grade 4 who applies this fall and winter to enter grade 5 next year takes the Lower Level; a student currently in grade 8 applying to enter grade 9 takes the Upper Level. The Middle Level and the Upper Level share the same test structure, and the official materials also describe the Upper Level as a high school admission test.
The question types, preparation route and corresponding Orange County schools for each level are covered on the level pages: Primary 2, Primary 3, Primary 4, Lower Level, Middle Level and Upper Level.
Test content: four scored sections and an essay
This section summarizes the test content at the Lower, Middle and Upper Levels. The official order of the test is Verbal Reasoning, Quantitative Reasoning, a break, Reading Comprehension, Mathematics Achievement, a break, and the essay.
| Section | Content assessed | Lower Level | Middle / Upper Level |
|---|---|---|---|
| Verbal Reasoning | Synonyms and sentence completion; tests vocabulary and reasoning | 34 questions, 20 minutes | 40 questions, 20 minutes |
| Quantitative Reasoning | Estimation, logic, comparison of quantities, interpretation of data and graphs; requires almost no calculation | 38 questions, 35 minutes | 37 questions, 35 minutes |
| Reading Comprehension | Main idea and details, inference, word meaning from context, organization, tone and figurative language | 25 questions, 25 minutes | 36 questions, 35 minutes |
| Mathematics Achievement | Number and operations, algebra, geometry, measurement, data analysis and probability; requires calculation and mathematical vocabulary | 30 questions, 30 minutes | 47 questions, 40 minutes |
| Essay | A short essay responding to a prompt drawn at random on the test day; unscored | 1 prompt, 30 minutes | 1 prompt, 30 minutes |
Source: official ERB ISEE materials.
Quantitative Reasoning and Mathematics Achievement are easily confused. The official distinction is that Quantitative Reasoning tests how students use mathematical thinking to solve problems, not how much mathematics they have learned, while Mathematics Achievement tests mathematical knowledge already mastered, requires actual calculation and in some questions requires recognition of English mathematical terms. For Irvine students whose first language is not English, the English terms in Verbal Reasoning and Mathematics Achievement usually need earlier preparation than the mathematics itself. Specific methods are covered in ISEE preparation for students whose first language is not English.
Although the essay is not scored, schools receive the original. To protect prompt security, parents cannot obtain a copy of the essay. The three Primary versions have no essay and test only reading and mathematics; Primary 2 also includes a listening comprehension section.
Question types, original sample questions and practice methods for each section are covered on the subject pages: Verbal Reasoning, Reading Comprehension, Quantitative Reasoning, Mathematics Achievement and Essay.
Three scores on the score report
This section briefly explains the three scores on the score report. At the Lower Level and above, each of the four scored sections has its own set of scores; the Primary levels have two scored sections.
| Score | Meaning | Range |
|---|---|---|
| Scaled score | Converted from the number of correct answers to offset differences in difficulty between test forms | 760 to 940 per section |
| Percentile rank | The percentage of all students in the same grade over the past three years whose scores the student equaled or exceeded | 1 to 99 |
| Stanine | Divides percentile ranks into nine bands of unequal width, with 9 as the highest band | 1 to 9 |
Source: official ERB ISEE materials.
The stanine bands cover percentile ranges of different widths, as the official materials explain below.
| Stanine bands | Percentile points covered |
|---|---|
| Bands 1 to 3 | The lowest 23 percentile points |
| Bands 4 to 6 | The middle 54 percentile points |
| Bands 7 to 9 | The highest 23 percentile points |
The result Irvine parents often refer to as the top outcome is a stanine of 9 on all four scored sections, meaning that each section falls in the highest band of the same-grade comparison group.
The ISEE counts only correct answers, and wrong answers carry no penalty. Each section also includes a small number of unscored trial questions that students cannot identify.
An item-by-item reading of an actual score report is available in ISEE score interpretation. Whether to retake the test after results are released, and how to send scores, are covered in planning retakes and score sending.
Testing seasons, test formats and score release
This section explains how many times a student can test in a school year, when the student can test and how results are released.
| Testing season | Months |
|---|---|
| Fall | August to November |
| Winter | December to March |
| Spring/Summer | April to July |
| Rule | Official position |
|---|---|
| Number of attempts | At most one test per season, and at most three per school year |
| Interval between tests | A student who tests in September during the fall season may test again in December, during the winter season, at the earliest |
| Test format | Online and paper, with the same number of questions and the same timing; the formats available vary by test site; the test organizer also offers an at-home option for some families |
| Score release | Usually 3 to 5 days for online tests and 5 to 10 days for paper tests; results are posted to the parent account and sent automatically to the schools the parents selected |
| Score sending | Schools can receive only one complete score report; the stronger sections from two test dates cannot be combined and sent together |
Source: official ERB ISEE materials.
Choosing a testing season, the registration steps and sending scores are covered in ISEE registration and scheduling. Items to bring on test day for each format are covered in the ISEE test day checklist. Whether to retake after the test is covered in planning retakes and score sending.
Deciding whether a student needs to take the ISEE
This section sets out an order of decisions. Whether a student needs to take the ISEE depends on the target schools, not on the student’s grade or grades.
- List the target schools and the grade the student is applying to enter at each.
- Check the test requirements on each school’s admission page: ISEE required, either ISEE or SSAT accepted, HSPT required, the school’s own assessment, or no test required. Requirements at K-8 and K-12 schools may differ by entry grade and should be confirmed grade by grade.
- If the ISEE is required, determine the level from the grade the student is applying to enter.
- Work backward from each school’s application deadline to choose a testing season, allowing time for results to be released. The independent school application timeline builder can help with scheduling.
The EDUBUS assessment: settle the schools first, then the test, and finally the level. When the order is reversed, the common result is preparing for a test that is not needed or registering for the wrong level. Test requirements for Orange County schools can be checked school by school on ISEE school requirements. Families who have decided on the ISEE but are not yet sure of the gap between the student’s current level and the target can begin by booking an ISEE placement assessment.
Common misconceptions
This section lists the five most common misconceptions among Irvine parents encountering the ISEE for the first time.
| Common misconception | Official rule | See |
|---|---|---|
| The level is chosen by the student’s current grade | The level is determined by the grade the student is applying to enter. A student currently in grade 6 applying to grade 7 takes the Middle Level, not the Lower Level. | Middle Level |
| A 70th percentile means 70% of the questions were answered correctly | A percentile rank shows what percentage of the same-grade comparison group the student equaled or exceeded, and it is unrelated to the share of correct answers. Applicants to independent schools are a high-achieving group as a whole, and the test organizer cautions that a student’s percentile may be noticeably lower than on ordinary school tests. | ISEE score interpretation |
| A stanine of 9 on all four scored sections means every question was answered correctly | A stanine is a band derived from comparison with students in the same grade, with 9 as the highest band. Reaching a stanine of 9 on all four scored sections does not require answering every question correctly. | ISEE score interpretation |
| The essay is not scored, so it needs no preparation | The original essay is sent to schools, which read it to understand how the student thinks and writes. | Essay |
| A disappointing result can be retaken immediately | Only one test is allowed per season, and the next attempt can come no earlier than the next season. As school deadlines approach, only one retake opportunity, or none, may remain. | Retakes and score sending |
Frequently Asked Questions
Which ISEE level should an Irvine student in grade 6 who will enter grade 7 next fall take?
The Middle Level. The official materials state that the test level is determined by the grade the student is applying to enter, not by the grade the student currently attends. Applicants to grades 7 and 8 take the Middle Level, so this student takes the Middle Level during the grade 6 year.
Do all the independent schools Irvine families apply to require the ISEE?
Not all of them. Requirements differ by school: some schools require only the ISEE, some accept either the ISEE or the SSAT, Catholic high schools often use the HSPT, and some schools use their own admission assessment or require no test. Families should check each school's admission page; EDUBUS maintains an ISEE school requirements page listing the test requirements of Orange County schools and the dates they were checked.
How many times can an Irvine student take the ISEE in one school year?
At most three times. The school year is divided into three testing seasons: fall (August to November), winter (December to March) and spring/summer (April to July), with at most one test per season. The official example: a student who tests in September during the fall season must wait until the winter season in December at the earliest to test again.
How soon are ISEE results released after an Irvine student tests, and when do schools receive them?
The official materials state that results for online tests are usually released within 3 to 5 days, and results for paper tests within 5 to 10 days. Results are posted to the parent account and sent automatically to the schools the parents selected; schools added after results are released incur no additional fee. Only one complete report can be sent to a school; families cannot send selected sections.
May Irvine parents see the student's ISEE essay?
No. To protect the security of the essay prompts, the test organizer does not provide families with a copy of the essay; only the schools the parents select to receive scores receive it. The essay is not scored, but schools read it to understand how the student organizes ideas and expresses them in writing.
Are Irvine students penalized for wrong answers on the ISEE?
No. The official materials state that the ISEE counts only correct answers; wrong answers carry no penalty, and leaving a question blank brings no benefit. Students should therefore answer every remaining question when time is about to run out.
