The flip: four answers are supported, one isn't
Most inference questions ask which answer is supported. "Least supported" and inference-EXCEPT questions flip that: four of the answers are supported by the stimulus, and the credited answer is the one that isn't.
The stems give it away — "Each of the following is supported by the passage EXCEPT" or "Which one of the following is LEAST supported?" The word EXCEPT or LEAST is doing heavy lifting, and missing it means answering the opposite question.
Your strategy inverts accordingly. Instead of hunting for the best answer, you eliminate the four that the stimulus backs up. Whatever is left — the answer with no support — is correct.
"Least supported" is not "must be false"
Be careful: "least supported" does not mean "false" or "impossible." The credited answer just lacks support — it could still be true in the real world; the passage simply doesn't give you grounds for it. That's different from a "cannot be true" question, where the answer must conflict with the stimulus.
| Stem | Credited answer is… | The other four are… |
|---|---|---|
| Most strongly supported | The one best backed by the text | Unsupported or weakly supported |
| Supported EXCEPT / least supported | The one with no support | Each clearly supported |
| Cannot be true | The one that conflicts with the text | Each consistent with the text |
So on an "EXCEPT" inference question, your eliminated answers should each earn a checkmark for "the passage supports this." The leftover answer might be perfectly plausible — it's correct because the passage is silent on it, not because it's wrong.
The method: tag each answer before you choose
Go answer by answer and tag each one: "supported — here's the sentence," or "no support I can find." On a five-choice EXCEPT question you expect four checkmarks and one blank.
If you find two answers with no support, you've either missed the evidence for one of them or misread the stem — re-read both against the text. If you find zero blanks, the same: something slipped past you.
This bookkeeping is what keeps EXCEPT questions from feeling slippery. You're not ranking vibes; you're confirming support for four answers and selecting the one that has none.
The common mistake: forgetting to flip
The number-one error is reading the stem as a normal inference question and picking the most-supported answer — which on an EXCEPT question is the surest way to get it wrong, because that answer is one you were supposed to eliminate.
It happens under time pressure: your eyes catch "supported" and your brain runs the usual play. The fix is to physically register the EXCEPT or LEAST before you touch the answers — circle it, or say "find the unsupported one" to yourself.
A second, subtler error is treating the credited answer as though it must be false. It doesn't. Pick the answer the passage gives you no reason to believe, even if it sounds reasonable on its own.
Frequently asked questions
What is a "least supported" question on the LSAT?
It's an inference question that flips the task: four answer choices are supported by the stimulus, and you pick the one that has the least support. The same logic applies to "Each of the following is supported EXCEPT" stems — eliminate the supported four and choose what's left.
Is the least-supported answer the same as a false answer?
No. The least-supported answer simply lacks support from the passage — it could still be true in the real world. That's different from a "cannot be true" question, where the credited answer must actually conflict with the stimulus.
How do I keep EXCEPT inference questions straight?
Register the word EXCEPT or LEAST before reading the answers, then tag each choice as supported or not. You should end with four supported answers and one with no support. If you have two blanks or none, you've misread the stem or missed some evidence.
What's the most common mistake on these questions?
Forgetting to flip the task and picking the most-supported answer, which is exactly one of the choices you were supposed to eliminate. Marking the EXCEPT/LEAST in the stem before evaluating answers prevents it.
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