Logical Reasoning · Question Type
Flaw in the Reasoning Questions
Identify why the reasoning fails.
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72 free practice questions
Flaw questions ask you to name the specific reasoning error. The wrong answers describe real flaws — just not the flaw the argument commits.
Strategy for Flaw in the Reasoning questions
- Pre-phrase the flaw before looking at answers.
- Learn the 12 common LSAT flaw patterns: causation-correlation, ad hominem, circular, straw man, part-whole, etc.
- Watch for absolute language in answer choices — 'takes for granted' is common; 'proves' is a red flag.
How this type shows up on the 2026 LSAT
Flaw in the Reasoning questions appear on both scored Logical Reasoning sections. With LR now contributing roughly two-thirds of your scaled score, mastering high-frequency types like this one is one of the highest-ROI activities in LSAT prep. Slot dedicated flaw in the reasoning drills into a structured 12-week LSAT roadmap, then benchmark your gains inside a full LR practice test or a complete timed test-day simulation.