ACT — American College Testing

What Is the ACT?

The ACT (American College Testing) is a standardised college readiness assessment administered by ACT, Inc. First introduced in 1959 as an alternative to the SAT, it has grown to rival and sometimes surpass the SAT in annual test-takers — over 1.3 million students sit the ACT each year. The ACT is accepted by all US colleges and universities and is the preferred test in the US Midwest, South, and many rural states.

Unlike the SAT, the ACT includes a dedicated Science section, rewards speed (more questions per minute), and has historically been considered more curriculum-aligned — testing what students actually learn in high school rather than abstract reasoning. Its composite score runs from 1 to 36.

Exam Format & Structure

flowchart TD
    A["ACT Exam
2h 55m core"] --> B["English
45 min · 75 Qs"]
    A --> C["Mathematics
60 min · 60 Qs"]
    A --> D["Reading
35 min · 40 Qs"]
    A --> E["Science
35 min · 40 Qs"]
    A --> F["Writing — Optional
40 min · 1 Essay"]
    B --> B1["Usage/Mechanics
Rhethorical Skills"]
    C --> C1["Pre-Algebra to
Pre-Calculus + Trig"]
    D --> D1["Literary Narrative
Social Sciences
Humanities · Natural Sciences"]
    E --> E1["Data Representation
Research Summaries
Conflicting Viewpoints"]
                            

English (45 minutes, 75 questions)

The English section presents five prose passages, each with portions underlined. You choose the best alternative or confirm the original is correct. Two main skill categories:

• Usage and Mechanics (53%): Punctuation, grammar and usage, sentence structure — commas, apostrophes, subject-verb agreement, parallel structure, run-ons
• Rhetorical Skills (47%): Writing strategy (adding/deleting sentences), organisation (ordering and transitions), style (word choice, avoiding redundancy)

Pace: 36 seconds per question. This is among the fastest-paced sections on any standardised test. Fluency with grammar rules is essential — there is no time to reason through them from scratch.

Mathematics (60 minutes, 60 questions)

The ACT Math section covers a broader curriculum than SAT Math, including topics up to pre-calculus and basic trigonometry. A calculator is permitted for all questions.

Reading (35 minutes, 40 questions)

The Reading section contains four passages (approximately 750 words each) from four genres: Literary Narrative/Prose Fiction, Social Sciences, Humanities, and Natural Sciences. Ten questions follow each passage. Unlike the SAT, questions are not adaptive — every test-taker sees the same passages. Speed is the primary challenge: you have about 8 minutes 45 seconds per passage including reading time.

Science (35 minutes, 40 questions)

The Science section is unique to the ACT — the SAT has no equivalent. Despite its name, it tests scientific reasoning and data interpretation skills, not science knowledge per se. You do not need to memorise chemistry equations or biology facts. Three question formats:

• Data Representation (~38%): Interpret graphs, tables, and figures from research — essentially advanced graph reading
• Research Summaries (~45%): Analyse experiments and their design — understand variables, conclusions, and errors
• Conflicting Viewpoints (~17%): Evaluate two or more incompatible hypotheses or theories

Scoring & Marking Scheme

Each of the four main sections is scored on a scale of 1–36. The composite score is the average of these four section scores, rounded to the nearest whole number:

The Writing (Essay) section, if taken, produces a separate score on a scale of 2–12, averaged from four domain scores (Ideas & Analysis, Development & Support, Organisation, Language Use). The Writing score does not affect the composite score.

ACT SuperScore: Many colleges superscore the ACT — taking your highest section score from any sitting and computing the best possible composite. This incentivises retaking the test focusing on your weakest section(s).

Score Benchmarks

College Board benchmarks (probability of earning B or higher in related first-year college courses): English: 18, Mathematics: 22, Reading: 22, Science: 23.

ACT vs SAT — Which Should You Take?

Both tests are accepted everywhere. The choice should be driven by diagnostic data, not brand preference:

What Your ACT Score Unlocks

How to Prepare

The ACT rewards subject knowledge and reading speed more than the SAT. Prep should focus on drilling all grammar rules, building speed through timed section practice, and mastering graph interpretation for Science.

• Free Official Resources: ACT Academy (act.org/academy) — free personalised practice, official mini-tests, and video lessons
• Official Practice Tests: Download all 8 free official ACT practice tests from act.org. These are the gold standard — the format, difficulty, and timing exactly match the real test
• Timeline: With 2+ hours/day, 10–12 weeks of preparation is sufficient for most score improvements. Students scoring below 20 should plan 16–20 weeks
• English: Master 15 core grammar rules (subject-verb agreement, comma usage, possessives, parallel structure, verb tenses) — these account for 80%+ of errors
• Math: Know the pre-calculus curriculum thoroughly; the ACT tests a wider breadth than the SAT but with less depth per topic
• Science: Practice graph and table interpretation — no science memorisation needed beyond basic vocabulary

Insider Tips & Tricks

• English: F.O.N.S. rule — For On, Now, Since are always followed by commas when joining independent clauses. Learn transitional word rules and comma splice prevention cold.
• Math: work every problem — Unlike the SAT, no ACT Math question is a trap. The straightforward approach works; overthinking costs time. If stuck, guess and move on.
• Reading: don't read first — Read the questions (not answer choices) before reading the passage for the Literary Narrative. For the other three passages, skim first for structure, then answer in order.
• Science: ignore the text — For Data Representation and Research Summaries questions, go straight to the figures. The text is usually only needed for Conflicting Viewpoints (7 questions total).
• Letter of the Day (LOTD): When guessing on questions you skip, always use the same answer letter (e.g., always guess C/H). This statistical trick slightly improves expected score over random guessing.
• Take the test in April of Grade 11 — score reports arrive before summer, giving you time to retake in June or the following September/October.