How the test works
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What the ASVAB actually is
Ten subtests. Four of them — Arithmetic Reasoning, Word Knowledge, Paragraph Comprehension, and Mathematics Knowledge — combine into the AFQT score, which is what determines whether you can enlist at all. The other six feed line scores that determine which jobs you qualify for. So AR, WK, PC and MK are where your study hours pay the most.
The AFQT is a percentile, not a percentage
A 50 doesn't mean you got half the questions right. It means you scored better than 50% of a reference group of test-takers. Minimum scores vary by branch and change over time — check with a recruiter for the current figure rather than trusting a number you read online.
CAT vs. paper
Most people take the computer adaptive version (CAT-ASVAB). It picks each question based on how you answered the last one: get it right and the next is harder, miss it and the next is easier. Harder questions are worth more, so a person answering 12 hard questions correctly can outscore a person answering 15 easy ones.
What adaptive testing means for strategy
You cannot skip questions or go back to change an answer. That changes everything: answer carefully the first time, and never leave a question blank — there's no penalty for guessing, so a blind guess is worth 25% and a blank is worth zero. Rushing early is expensive, because early questions have the largest effect on where the difficulty settles.
Timing
Total seat time is about 186 minutes, but almost nobody uses all of it. Arithmetic Reasoning gets 55 minutes for 15 questions — that's generous on purpose, because they're word problems. Word Knowledge gets 9 minutes for 15. Know which sections are tight before you sit down.
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