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Course: LSAT > Unit 1
Lesson 6: Logical Reasoning – Articles- Getting started with Logical Reasoning
- Introduction to arguments
- Catalog of question types
- Types of conclusions
- Types of evidence
- Types of flaws
- Identify the conclusion | Quick guide
- Identify the conclusion | Learn more
- Identify the conclusion | Examples
- Identify an entailment | Quick guide
- Identify an entailment | Learn more
- Strongly supported inferences | Quick guide
- Strongly supported inferences | Learn more
- Disputes | Quick guide
- Disputes | Learn more
- Identify the technique | Quick guide
- Identify the technique | Learn more
- Identify the role | Quick guide
- Identify the role | learn more
- Identify the principle | Quick guide
- Identify the principle | Learn more
- Match structure | Quick guide
- Match structure | Learn more
- Match principles | Quick guide
- Match principles | Learn more
- Identify a flaw | Quick guide
- Identify a flaw | Learn more
- Match a flaw | Quick guide
- Match a flaw | Learn more
- Necessary assumptions | Quick guide
- Necessary assumptions | Learn more
- Sufficient assumptions | Quick guide
- Sufficient assumptions | Learn more
- Strengthen and weaken | Quick guide
- Strengthen and weaken | Learn more
- Helpful to know | Quick guide
- Helpful to know | learn more
- Explain or resolve | Quick guide
- Explain or resolve | Learn more
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Match structure | Quick guide
A quick guide to approaching questions that ask you to match the structure of an argument in a choice to the structure of the argument in the passage
This question is asking you to choose an argument from among the choices that is structurally the same as the argument in the passage. In other words, the answer will have the same kind of conclusion and the same kind of evidence as the passage.
These questions tend to be challenging, most of all because they take so much time. Part of the reason is that they’re long—you don’t just have to read one argument, you have to read up to six! Given the time constraint, these are questions that many students wisely choose to skip and return to if they have time.
Wrong choices will be arguments that either have a different kind of conclusion than the passage does, or a different kind of support than the passage does, or both.
Top tip: Topic doesn’t matter at all—only the reasoning pattern does. It’s worth noting that the order in which elements appear doesn’t matter either; a passage with the conclusion at the end can match perfectly with a choice with the conclusion at the beginning, for example.
Some helpful practices
✓ Identify the conclusion and support of the original argument: What is the arguer’s primary conclusion, and what information is provided to support that conclusion?
✓ Consider diagramming the passage’s structure: If you see some repeating terms and they seem to have a discernible relationship to each other, or if the entire passage is based on conditional logic, you can often map the argument in shorthand in order to understand its pieces better. For example, if the passage shows a structure of, “It could be X, Y, or Z, but it can’t be X, so it must be Y or Z”, then the answer will reflect that same structure.
✓ Characterize the conclusion: Is it a definite prediction? Is it an indefinite recommendation?
✓ Characterize the argument in general terms: Ignoring the specific topic to a reasonable extent, can you phrase the argument in a general way? For example, "An event has two possible causes. The arguer rules out one cause, so it must be the other cause."
✓ Eliminate as many choices as you can: If you are pressed for time, one way to begin evaluating choices is to eliminate a choice as soon as its conclusion doesn't match. If the type of conclusion is very different from the original argument’s conclusion, it’s not likely to be a match for the passage's structure. Be warned! This strategy will not work in all cases—time permitting, you should try to eliminate options based on the reasoning structure of the argument as a whole.