ISEE Upper Level Preparation:Test Structure and Timeline

Who takes the Upper Level

This section explains which students should register for the Upper Level.

The ISEE (Independent School Entrance Exam) is the admission test that many private schools use to compare applicants. It is administered by the test organiser (ERB, now part of E3n). The testing level is determined by the grade a student is applying to, not by the grade the student currently attends. According to the test organiser, the Upper Level applies to grades 9 through 12 and also serves as a high school entrance examination. In Irvine, the most common Upper Level test-taker is a current 8th grader applying to 9th grade. A smaller number of 9th and 10th graders seeking to transfer into a private high school also take the Upper Level.

The test organiser describes four main levels: Primary, Lower, Middle and Upper. The Primary Level is further divided by entry into grades 2, 3 and 4, so there are four main levels and six grade-of-entry points in total. The Upper Level has exactly the same structure as the Middle Level; the difference lies in the comparison group.

The ISEE is norm-referenced: a student’s percentile and stanine are calculated by comparison with other test-takers rather than against a fixed passing mark. A stanine is a score from 1 to 9 that divides all students in a group into nine bands, from lowest to highest. Each year the test organiser builds these comparisons from students who took the test in the prior three years, grouped by grade. A student applying to 9th grade is therefore measured against the previous three years of 9th-grade applicants.

Test structure (verified against official sources)

This section lists the number of questions and the time allowed for each Upper Level section, in the official order.

Section	Questions	Time	Average per question	Scored
Verbal Reasoning	40	20 minutes	about 30 seconds	Yes
Quantitative Reasoning	37	35 minutes	about 57 seconds	Yes
Break	—	10 minutes	—	—
Reading Comprehension	36	35 minutes	about 58 seconds (including reading the passages)	Yes
Mathematics Achievement	47	40 minutes	about 51 seconds	Yes
Break	—	10 minutes	—	—
Essay	1 prompt	30 minutes	—	No; sent to schools only
Total	160 multiple-choice questions + 1 essay	2 hours 40 minutes, plus two breaks	—	—

Source: official ERB ISEE materials. The “average per question” column is calculated by dividing the time by the number of questions.

Testing rule	Details
Testing seasons	Fall: August to November; Winter: December to March; Spring/Summer: April to July
Number of attempts	Once per testing season, up to three times in a school year
Formats	Online and paper; online essays are typed, and paper essays are handwritten with a black or blue ballpoint pen
Scoring	Only correct answers are scored; there is no penalty for wrong answers
Score turnaround	Online tests: usually 3 to 5 days; paper tests: usually 5 to 10 days
Registration deadlines	Online tests: at least 3 days before the test date; paper tests: at least 21 days before, with late registration 20 to 14 days before
Sending scores	Only complete reports can be sent; recipients can be removed until the test date but not afterwards; no extra fee for adding schools after scores are released

Source: official ERB ISEE materials.

Two of these rules directly affect test-taking strategy:

1. Because wrong answers carry no penalty, students should answer every question and should not leave any blank when time runs short.
2. Verbal Reasoning allows only about 30 seconds per question, which makes it the fastest-paced of the four sections. Students need to recognise vocabulary on sight rather than work out word meanings during the test.

Key difficulties at the Upper Level

This section explains which skills each scored section tests and where 8th graders most often encounter difficulty.

Section	What it measures, according to the test organiser
Verbal Reasoning	Two question types, synonyms and sentence completions; both test vocabulary and reasoning ability
Quantitative Reasoning	How students apply their understanding of mathematics: estimating, applying logic, comparing quantities, analysing data and interpreting graphs. Little or no calculation is required, because the section tests mathematical thinking rather than the amount of mathematics learned
Reading Comprehension	Main ideas and supporting details; inference; vocabulary in context; organisation and logic; tone, style, point of view and figurative language
Mathematics Achievement	The strands of the National Council of Teachers of Mathematics (NCTM): numbers and operations, algebra, geometry, measurement, data analysis and probability, and problem solving. Calculation is required, and some questions assume knowledge of mathematical terminology in English

The test organiser also notes that students applying to independent schools are generally of higher ability and achievement than the overall student population, so a student’s ISEE percentile may be noticeably lower than the percentiles reported on school-based tests.

In EDUBUS’s experience, Irvine 8th graders most often show the following three gaps.

Gap	Explanation
Academic vocabulary	Reading Comprehension and Verbal Reasoning draw heavily on literary and social-science vocabulary that rarely appears in class.
Uneven mathematics preparation	8th graders in the Irvine Unified School District follow several different math pathways, and any algebra or geometry a student has not yet covered needs to be taught before the test.
Unfamiliar question formats	Quantitative comparison questions in Quantitative Reasoning ask which of two quantities is greater, or whether the relationship cannot be determined. This format seldom appears in school homework.

How high schools read the essay

This section explains why the unscored essay still requires preparation.

According to the test organiser, a writing prompt is randomly selected for each test date. The prompt is designed to let students tell schools more about themselves while showing how well they organise and express their ideas in writing. The essay is not scored, and families do not receive a copy; only the schools the family selects as score recipients can read it.

In EDUBUS’s experience, high school admission offices read the ISEE essay alongside the student’s application essays. Application essays can be revised many times, whereas the ISEE essay is written in 30 minutes without assistance. A large gap in vocabulary or organisation between the two can lead readers to question how much of the application essay is the student’s own work. The goal of essay training is therefore not elaborate writing but a short essay with a clear structure, a definite point of view and concrete examples, written within 30 minutes and consistent with the student’s own application writing. Methods and common prompt types are covered on the Essay page in this library.

Four original practice questions

The four questions below were written by the EDUBUS teaching team for students applying to 9th grade. They are not official sample questions. Free official sample tests are available on the Preparation page at admission.org.

Question 1 (Verbal Reasoning · Sentence completion)

Although the committee’s first draft was praised for its bold ideas, its final report was surprisingly ______, offering few specific recommendations. (A) comprehensive (B) vague (C) persuasive (D) meticulous

Explanation

The answer is B. The sentence opens with “Although”, which signals a contrast: the first draft was praised for bold ideas, so the blank must describe the final report in the opposite direction. The phrase after the comma, “offering few specific recommendations”, narrows the meaning further. “Vague” (unclear, lacking detail) matches it exactly.

(A) “Comprehensive” (thorough, covering everything) contradicts “few specific recommendations”. (C) “Persuasive” is a positive judgement and does not create the contrast the sentence requires. (D) “Meticulous” (extremely careful and precise) is also positive, and it means nearly the opposite of “not specific”.

Skill tested: recognising contrast signal words and using the explanatory phrase in the sentence to determine the direction of the missing word.

Question 2 (Quantitative Reasoning · Quantitative comparison)

a and b are positive numbers, and a/b = 3/4. Column A: a + 1 Column B: b (A) The quantity in Column A is greater. (B) The quantity in Column B is greater. (C) The two quantities are equal. (D) The relationship cannot be determined from the information given.

Explanation

The answer is D. The condition fixes only the ratio of a to b, not their values. Write a = 3k and b = 4k, where k is any positive number. Column A becomes 3k + 1 and Column B becomes 4k. Subtracting 3k from both columns reduces the comparison to 1 against k, which produces three cases:

1. If k < 1 (for example, k = 0.5, so a = 1.5 and b = 2), Column A is 2.5 and Column B is 2, so Column A is greater.
2. If k = 1 (a = 3 and b = 4), both columns equal 4, so the quantities are equal.
3. If k is greater than 1 (for example, k = 2, so a = 6 and b = 8), Column A is 7 and Column B is 8, so Column B is greater.

Because the same condition produces all three relationships, the relationship cannot be determined.

Each wrong answer results from testing only one kind of value. Students who choose (C) test only the simplest pair, 3 and 4 (k = 1). Students who choose (B) note that b is larger than a and test only larger values (k greater than 1), overlooking how much the added 1 matters when the numbers are small. Students who choose (A) test only values with k < 1. Since 3k and 4k are both whole numbers only when k is itself a whole number, testing whole numbers alone never reveals the case in which Column A is greater. The question states that a and b are positive numbers, not whole numbers, so fractions and decimals must also be tested.

Skill tested: understanding what a ratio does and does not establish, and applying the basic quantitative comparison method of testing several sets of values.

Question 3 (Reading Comprehension · Inference)

Before home refrigerators were common, many American households kept food cold with ice cut from frozen lakes in the North. Workers sawed the ice into blocks each winter and packed them in sawdust inside thick-walled icehouses, where the blocks could last well into summer. Ships then carried the ice to warm cities along the coast and even overseas. The business seemed secure as long as winters stayed cold. Yet once machines could make ice in any city and in any season, the frozen lakes of the North slowly lost their customers.

The passage suggests that the ice trade declined mainly because (A) northern lakes no longer froze in winter (B) ice could be produced close to where it was needed (C) sawdust became too expensive to use (D) people in warm cities stopped wanting cold food

Explanation

The answer is B. The last sentence states that once machines could make ice “in any city and in any season”, the northern lakes lost their customers. The passage never states outright that local production caused the decline; the student must infer from “any city” that ice no longer needed to be shipped long distances.

(A) contradicts the passage, which says the business was secure as long as winters stayed cold and never suggests that the lakes stopped freezing. (C) mentions sawdust, which appears in the passage only as insulation; its price is never discussed. (D) has no support, because demand for cold storage continued; what changed was how ice was supplied.

Skill tested: drawing an inference from the contrast introduced by “Yet” in the final sentence, and rejecting answer choices that reuse words from the passage without answering the question.

Question 4 (Mathematics Achievement · Linear functions)

A line passes through the points (2, 5) and (6, 13). What is the y-intercept of the line? (A) −1 (B) 1 (C) 2 (D) 3

Explanation

The answer is B. First, find the slope: (13 − 5) ÷ (6 − 2) = 8 ÷ 4 = 2. Substituting the point (2, 5) into y = 2x + b gives 5 = 4 + b, so b = 1.

(C) is the slope, not the intercept; the student has stopped at an intermediate result. (D) comes from 5 − 2 = 3: the student subtracted the slope itself instead of the slope multiplied by x = 2. (A) comes from 4 − 5 = −1, a sign error made when rearranging the equation.

Skill tested: finding the slope and intercept of a line from two points, a core topic in 8th-grade algebra.

Preparation and application timeline

This section explains what a private high school application requires and where the ISEE fits in the timeline.

The ISEE score is only one part of a private high school application. Schools also require teacher recommendations, a student interview and a campus visit, and some require written statements from the student and parents. All of this takes place between September of 8th grade and the following February, concurrently with test preparation. The table below uses two Orange County schools checked for this page as examples and shows the official requirements for entry in the 2027–28 school year.

School	Application opens / forms	Test	Recommendations and statements	Interview and visit	Deadline
Sage Hill School	Online application opens September 1, 2026	ISEE or SSAT (either one)	3 evaluations: 1 from the current principal, head of school, counselor or advisor; 1 from the current English teacher; 1 from the current math teacher	Individual student interview without parents present, typically about one hour	January 31, 2027; official test scores must arrive by this date
St. Margaret’s Episcopal School	Application form (Form 1) due December 15, 2026	The ISEE “At-Home” assessment	Parent statement, student statement, teacher comment and transcript	In-person applicant interview and visit day	February 1, 2027. Early Admission Review: opt in by November 15 and complete all requirements by December 1, 2026, for a decision in mid-December

Source: the Sage Hill School How to Apply page and the St. Margaret’s Episcopal School Apply page. Requirements for other schools appear in the school table generated from the EDUBUS school database below this article; each school’s official website is the final authority.

Based on these requirements, the 8th-grade year of an Irvine student applying to 9th grade typically follows the schedule below.

Period	Test preparation	Application tasks
Summer between 7th and 8th grade	Placement assessment; address gaps in academic vocabulary and mathematics; learn the question types in all four sections	Draft a list of target schools and confirm which test each one requires
September of 8th grade	Systematic training; first full-length practice test	Online applications open; attend open houses; select recommenders
October to November	First attempt in the fall testing season	Formally request teacher recommendations; prepare for early review dates where applicable
November to early December	Review the first score report and decide which sections to target in a retake	Submit early review materials; schedule interviews and visit days
December to early January	Retake in the winter testing season	Complete interviews; check each school’s list of required materials
Late January to early February	Confirm that scores have arrived	School deadlines

Winter retakes and January application deadlines

This section explains why a winter retake often misses application deadlines and how families should plan around this constraint.

The conflict arises from the division of testing seasons. The winter season begins in December, while the deadlines at the two schools above are January 31 and February 1.

Timing of the first attempt	Retake window before the deadlines
October or November (fall season)	The winter season is the only retake window before the deadlines, and the retake must still leave time for scoring and sending reports
December (winter season)	None: the first attempt uses the winter season, and the next opportunity is the spring/summer season beginning in April, after the deadlines have passed

EDUBUS recommends the following plan.

1. Take the first test in October or November. This leaves one attempt in the fall and one in the winter, and the first score report shows where the retake should focus.
2. Decide within two weeks of receiving the first scores. Only complete reports can be sent, and sections from two tests cannot be combined, so every section of the retake needs to be at least as strong as in the first attempt. Training should therefore cover all four sections rather than a single section.
3. Schedule the winter retake in December or early January rather than late January. Paper tests usually take 5 to 10 days to score and require registration at least 21 days in advance; a late-January test leaves no margin if scores are delayed.
4. Avoid scheduling interviews and visit days in the week before the retake. Eighth graders are managing school finals, recommendation requests and interviews at the same time, and the week before the test should maintain a steady training schedule.
5. Request recommendations before November. Sage Hill School requires evaluations from the current English and math teachers, who have known the student only since August, and the weeks before winter break are their busiest period of the year.
6. Choose the test format each school requires. St. Margaret’s Episcopal School requires the at-home version of the ISEE, so families applying there should select that format at registration, and applicants on the Early Admission Review track need to complete it in the fall.
7. Set score recipients at registration. Recipients can be removed until the test date but not afterwards. Because adding schools after scores are released incurs no extra fee, a family with limited time may also leave recipients blank and add them later.

EDUBUS courses at the Upper Level

This section lists the courses and services available to families applying to grades 9 through 12.

Format	What it includes	Best suited to
Fall group classes	Three modules (Verbal Reasoning, Reading Comprehension, and Quantitative Reasoning with Math); students may enroll in one module or all three	Students preparing on a fall-first-attempt, winter-retake schedule
Private tutoring	Content and pace tailored to placement assessment results	Students with a clear gap in one section, or whose schedule must accommodate interviews and visits
ISEE online learning system	Built by EDUBUS: practice by section, full-length simulated tests, error analysis and daily vocabulary check-ins; monthly, quarterly or annual subscription	Students who need consistent practice between classes and wish to build academic vocabulary
3 private school applications + ISEE preparation package	The EDUBUS counseling team manages applications to 3 target schools and schedules ISEE preparation at the matching level	Families who want one team to coordinate test preparation, recommendations, interviews and deadlines

Private school application services are provided by the EDUBUS counseling team at the Irvine Ivy Center, and ISEE classes are taught at the EDUBUS teaching center in Irvine. Prices and class start dates are listed on the ISEE courses and assessment page.

For students applying to 9th grade, EDUBUS recommends beginning with an Upper Level placement assessment. The results indicate whether group classes, private tutoring or a combination is most suitable, and the first-attempt and retake dates can then be planned backwards from each school’s deadline.