Link assumption

(LinkA)

Arguments that feature an unjustified shift from one concept to another, which don't fit neatly into other common flaw categories (e.g. moving from premises about "buildings" to a conclusion about "houses").

Avg. 3.15 per section
9%
20%
35%
24%
13%

Avg. difficulty: 3.1

Key tactics

  • A huge part of why the LSAT has a reputation as a persnickety, pedantic test is because it constantly asks us to notice tiny changes in wording that lead to substantive differences.
  • Most of the common flawed reasoning patterns can be described in Link assumption terms - jumping from correlation to causation, from sufficiency to necessity, from pecentages to amounts, etc.
  • "Link assumption" is the catch-all tag for conceptual jumps that don't fall into common categories (e.g. from "hiking" to "outdoor recreation").
  • Whenever an author uses two different phrasings to refer to (supposedly) the same concept, ask yourself whether those two concepts are ACTUALLY the same.
  • Sometimes the two concepts are the same. For example, "ways to hide" and "methods of concealment" are functionally the same despite their different wording.
  • Sometimes the two concepts are different. For example, "hiking" and "outdoor recreation" are different because hiking is a specific kind of outdoor recreation, and there are other kinds too (like playing tennis).

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Logical reasoning question types

Argument part Evaluate Fill in the blank Flaw or descriptive weakening Inference Main conclusion or main point Method of reasoning or descriptive Most strongly supported Must be false Must be true Necessary assumption Parallel flawed method of reasoning Parallel method of reasoning Point at issue: agree Point at issue: disagree Principle PSA - find or complete the application PSA - find the rule Resolve reconcile or explain Strengthen Sufficient assumption Weaken

Reading comprehension question types

Analogy (RC) Application Author’s attitude Author’s perspective Describe approach Describe organization Describe relationship Implied Logical continuation Main point Meaning in context (of word, phrase, or idea) Other’s perspective Principle or generalization Purpose in context (of word, phrase, or idea) Purpose of paragraph Purpose of passage Stated Structure WSE (RC)

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