How to spot it

Every noun matches. The topic matches. The choice sounds like the sentence you just read, because most of it is the sentence you just read.

The reversal is usually carried by one word, and it is a small word. Not, fails, prevents, without, rather than. Sometimes it is a verb that quietly points the other way: a policy that reduced congestion becomes a policy that burdened commuters, or a law protecting a species becomes a law restricting it.

The tell is that you can find every element of the choice in the passage and still be wrong, because what the passage did with those elements was the opposite of what the choice does.

What it looks like

Passage: In surveys taken before the trial, roughly two thirds of residents opposed the charge. After seven months, a majority voted to keep it.

Question: What does the passage indicate about public opinion?

Wrong answer: Residents who initially opposed the charge remained unconvinced after the trial.

Correct answer: Opinion moved in favour of the charge over the course of the trial.

The wrong answer holds the right people, the right subject and the right time frame. It reverses the one thing the passage was reporting, which is the direction the opinion moved.

Why it works on people

Recognition arrives before comprehension. Reading quickly, you confirm that a choice is about the correct subject and your eye moves on, because subject-matching is fast and comparing direction is slow.

The design exploits that ordering. A choice built from the passage's own vocabulary passes every cheap check you can run, so the only check that separates it from the right answer is the one that takes deliberate effort.

Tiredness makes it worse, which is why these tend to cost more in the second half of a section.

How to beat it

Confirming the subject will not help you here, so stop doing that first. The subject is identical in both surviving choices by design.

When you are down to two, find the word in each choice that carries direction or negation. Not, fails, reduces, prevents, increases, rather than. Then find the matching word in the passage and put them side by side.

You are comparing one word against one word instead of a sentence against a paragraph, which is both faster and much harder to get wrong.

If a choice contains no direction word at all, that is worth noticing too. Sometimes the reversal is in a verb rather than a negative, and the question is which of two verbs the passage actually used.

How often it shows up

Counted in September 2026: 1,079 of the 19,627 questions in our practice bank contain this trap, across 1,612 separate answer choices. Some questions use it more than once.

Related patterns

• Reversed relationship: that one keeps both ideas and flips the link between them, so a cause becomes an effect. This one flips the polarity of a single claim rather than the direction of a relationship.
• Claim goes too far: that one keeps the direction and pushes the strength, turning a maybe into an always. This one keeps the strength and inverts the direction.
• Sounds right, never said: that one adds something the passage never contained. This one is built entirely from what the passage did contain.