HiSET Study Guide — 220+ High-Yield Terms & Concepts

High-Yield Terms & Concepts for the High School Equivalency Test (Reading, Writing, Math, Science & Social Studies)

Pass the HiSET — the High School Equivalency Test, the diploma-equivalent credential governed by ETS and offered in about 26 states and 5 U.S. territories — with a focused, high-yield concept review built for the current (2026) format of all five subtests: Language Arts – Reading (50 questions / 65 min), Language Arts – Writing (60 questions + 1 essay / 120 min), Mathematics (55 questions / 90 min, calculator + formula sheet), Science (60 questions / 80 min), and Social Studies (60 questions / 70 min). The HiSET is a fixed-form test — it is NOT computer-adaptive, and there is no wrong-answer penalty (no deduction for guessing), so every question you attempt counts toward your score. Every subtest is scored 1–20, and passing requires ALL three: at least 8 on each of the five subtests, at least 2 out of 6 on the Writing essay, and a combined total of at least 45; scoring 15+ on a subtest earns a College & Career Readiness indicator. The guide teaches 220+ high-yield terms and concepts (228 actual) across 14 parts — exam format & scoring, Language Arts – Reading, Language Arts – Writing, Math (numbers & operations, algebra & functions, geometry & measurement, data analysis & probability), Science (life, physical, earth & space), Social Studies (history, civics & government, economics & geography), and final review & test-day strategy — each concept pairing key facts with a strategy tip and a worked example. Registration, delivery options (computer or paper; test center or at-home remote proctoring), fees that vary by state and site, the two free retakes included within 12 months of each subtest purchase, and the 24-hour cancellation rule are all covered — confirm current details at hiset.org. Independent study aid; this guide is NOT affiliated with, endorsed by, or sponsored by ETS (Educational Testing Service), PSI, or any state education agency. HiSET is a registered trademark of ETS. The HiSET exam is administered under the policies of ETS and the state or jurisdiction where you test. Exam format, content, scoring, fees, and policies can change — confirm current details with the official HiSET Test Taker Bulletin and your state's requirements at hiset.org before registering. Does not reproduce official test questions.