Almost every Logical Reasoning question starts with one skill: breaking down argument structure. What's the conclusion? What are the premises? Stimulus X-Ray drills this skill until it's automatic.

How it works. Each round shows a short stimulus. First you decide whether it is even an argument. If it is, you label each statement by its role, then Scan to reveal which labels held up. Learn Mode adds the different statement roles one level at a time, from plain premise and conclusion up to intermediate conclusions and opposing views. Challenge Mode deals every label at once. A reference panel is one tap away, and after each run you can reopen every stimulus, including the ones that confused you, with the correct labels and a short explanation.

If a stimulus trips you up, start with the argument structure lessons below.

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