Test prep
SAT and ACT Test Prep Guide
How to pick between the SAT and ACT, the 12-week prep plan that produces 100-200 point average score gains, and the score targets at each tier of school.
SAT vs ACT: how to choose
Colleges accept both equally. Take a practice test of each — most students score meaningfully better on one. Pick that one and stop comparing.
| Factor | SAT | ACT |
|---|---|---|
| Format | Digital adaptive (since 2024). Two modules per section. | Linear paper or digital. Same questions in same order for everyone. |
| Timing | Faster pace per question, but shorter overall (~2hr 14min). | Slower per question, longer overall (~2hr 55min including science). |
| Math | Algebra-heavy. Includes Heart of Algebra + Problem Solving + Advanced Math + Geometry. | Algebra + Geometry + Trigonometry. Calculator allowed throughout. |
| Reading | Shorter passages, more questions per passage. Single questions per passage. | Longer passages with multiple questions each. Faster reading required. |
| Science section | None. | Yes — but it's mostly graph reading and experiment interpretation, not science content knowledge. |
| Writing/Grammar | Integrated into Reading & Writing module. | Separate English section. Grammar-heavy. |
| Score range | 400-1600 (200-800 each section). | 1-36 composite. |
Score targets by tier
| Tier | SAT | ACT | Note |
|---|---|---|---|
| Ivy / MIT / Stanford / Caltech | 1500-1570 | 34-35 | Middle 50% of admitted students. Below 1450/33 with no compensating factors is risky. |
| Top-20 (Duke, Northwestern, etc.) | 1470-1550 | 33-34 | Strong but not extraordinary. Test-optional viable below 1430/32. |
| Top-50 (NYU, USC, Wisconsin tier) | 1380-1500 | 31-33 | Wide variation by school. Check each school's CDS C9 page. |
| State flagships | 1280-1430 | 28-31 | Highly variable by state. In-state often has lower thresholds than out-of-state. |
Ranges represent the middle 50% of admitted students. Below the 25th percentile of admits at a given tier, going test-optional is often the better move (if available).
The 12-week prep plan
Average gains for students who follow this plan consistently: 100-200 points (SAT) / 3-5 points (ACT). Consistency beats intensity — 30-45 min/day for 12 weeks beats 3 hours/day for 4 weeks.
Weeks 1-2
Diagnostic & gap analysis
Take a full official Bluebook (SAT) or ACT.org practice test. Categorize every miss: content gap (didn't know it), timing (ran out), or careless (knew it, missed it).
Weeks 3-6
Targeted content review
Khan Academy SAT or ACT.org practice. 30-45 min/day, 4-5 days/week. Drill weak skills, then 10-15 problems on each skill afterwards.
Weeks 7-9
Full-length practice + pacing
One full official practice test per week under timed conditions. Add timed-section drills mid-week to build pacing under pressure.
Weeks 10-11
Mistake review
Review every missed question across all practice tests. Look for patterns — same skill, same trap, same time-pressure breakdown. Take one final timed full-length test 7-10 days before test day.
Week 12
Taper
No new material. Light review only. Sleep on a normal schedule. Eat breakfast on test day. Bring a water bottle and an approved calculator.
Free resources that actually work
Most students don't need a paid prep course. The free official resources below are sufficient for almost everyone to reach their score potential.
Bluebook (College Board)
Official SAT practice — adaptive, in the actual app you'll test in.
Khan Academy Official SAT Practice
Personalized practice based on your diagnostic score. Free, official partnership with College Board.
ACT.org Free Test Prep
Free official practice questions, ACT Online Prep tier (paid), and one full practice test.
PrepScholar / Magoosh free trials
Both offer free 7-day trials with adaptive practice. Useful for additional question variety.
When to take, retake, and stop
- First take: spring of junior year, after at least 8 weeks of prep.
- Second take: late summer or early fall of senior year. Most students improve 30-50 points on attempt 2.
- Third take: only if attempt 2 didn't hit your target. Usually +20 points or less.
- Stop when your last 2 practice tests are within 30 points of each other AND at or above target.
- Don't take the SAT/ACT more than 4 times — it suggests you don't know when to stop.
Frequently asked questions
Should I take the SAT or ACT?
Take a full practice test of each under timed conditions. Most students score meaningfully better on one. Pick that one. Colleges accept both equally — there is no admissions advantage to either test.
What is a good SAT score for college?
It depends on your target schools. For Ivy League and top-10 schools, the middle 50% of admitted students score 1500-1570. For top-20 schools like Duke or Northwestern, 1470-1550. For top-50 schools, 1380-1500. Check each school's Common Data Set for exact ranges.
How long should I study for the SAT?
12 weeks of consistent preparation (30-45 minutes per day, 4-5 days per week) produces the best results. Average gains: 100-200 points on the SAT, 3-5 points on the ACT. Consistency beats intensity.
Is the SAT still required for college?
Most schools are test-optional in 2026, meaning you can choose whether to submit scores. Some schools (MIT, Georgetown, Purdue, UT Austin) have returned to requiring test scores. Check each school's current policy on their admissions website.
How many times should I take the SAT?
Most students take it twice — once junior spring and once senior fall. A third attempt yields diminishing returns (usually +20 points or less). Don't take it more than 4 times. Stop when your last two practice tests are within 30 points of your target.
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