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Study LSAT flaws with flashcards made from your own notes

Upload your prep PDFs, slides, or photos of practice questions and get flashcards for each flaw type, reviewed with spaced repetition.

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How to practice LSAT flaws from your own material

Most LSAT flaw questions come down to spotting one broken link in an argument, and the fastest way to build that instinct is repeated practice with the explanations you already have. LSAT flaws study works best when each card names the flaw type and shows a short argument that commits it.

  • Name the flaw type before you look at the answer choices.
  • Review cards you missed more often than cards you got right.
  • Paraphrase each argument in one sentence to expose the gap.
  • Export to Anki on the Plus plan if you already use it for review.
Example LSAT flaw questions and answers
Flaw: "This argument's premise says the policy is popular because people support it, which is the same claim as the conclusion."Circular reasoning: the premise restates the conclusion, so nothing independent supports it.
Flaw: "Ice cream sales and drownings both rise in summer, so ice cream must cause drowning."Correlation treated as causation: a shared cause, hot weather, is ignored.
Flaw: "Most respondents in our survey were gym members, so this supplement appeals to everyone."Unrepresentative sample: the surveyed group does not reflect the population the conclusion covers.
Flaw: "Each part of this machine is lightweight, so the whole machine is lightweight."Assumes that what is true of each part must also be true of the whole.
Flaw: "The senator is an economist, so her claim about vaccines must be true."Appeal to authority: expertise in one field does not establish a claim in an unrelated field.
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Cards from your material

Upload PDFs, DOCX or PPTX files, plain notes, or photos of pages. Each flaw type in your prep material becomes its own flashcard.

Spaced repetition

Cards you miss come back sooner, and cards you know fade into longer intervals, so flaw patterns stick before test day.

Study in the browser

Practice on any device with a browser. The free plan covers studying, and Plus adds PDF, DOCX, Anki and CSV export.

How it works

Upload your prep material

Add a PDF, slide deck, typed notes, or a photo of your practice set. Images are read with text recognition.

Generate flashcards

DeckOwl pulls out the argument, the flaw, and the reasoning error, then writes question and answer cards from them.

Review on a schedule

Rate each card as you study. Spaced repetition brings back the flaws you keep missing more often.

Generic lists of flaw types help less than cards drawn from your own prep books, timed drills, and class notes. When you upload those materials, the flashcards reflect the exact reasoning patterns your course or test prep emphasized, so review matches what you will see on the exam.

Use short daily sessions instead of one long cram. Spaced repetition will keep the circular reasoning, sampling, and authority errors fresh while you work through the rest of your prep schedule.

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Frequently asked questions

What are the most common flaws tested on the LSAT?

Frequent flaws include circular reasoning, confusing correlation with causation, unrepresentative samples, shifting the meaning of a term, and appeals to authority. Questions often ask you to match the flaw to the argument's gap between premise and conclusion.

How should I study LSAT flaw questions?

Work through each argument and state the gap in your own words before checking the answer. Repeat the cards you miss over several days so the patterns become automatic.

Is there a free way to start?

The free plan includes 3 generations per month and studying in the browser, and no credit card is needed to start. Exports are part of the paid Plus plan.

Can I export my LSAT flaws flashcards to Anki?

Yes, Anki export is included with Plus, which costs $39/year or $7.99/month. Students with a school email get 40% off.

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Review the main ideas visually or practice recalling them.