Main Conclusion and Argument Role Questions
From the LogIcal reasoning for tHE LSAT for weaken, main conclUSION, strengtHEN, and flaw qUEstIoN types curriculum
TL;DR
Main Conclusion questions ask you to identify the primary point the author is trying to prove, while Argument Role questions ask about the function a specific statement plays within the argument. Both question types require you to understand the argument's structure, distinguishing premises (reasons) from conclusions. Look for indicator words and analyze how sentences relate to each other to find the main conclusion or a statement's role.
1. The Mental Model
Think of an argument as a house: the main conclusion is the roof, and the premises are the walls holding it up. Argument role questions ask you to identify if a particular wall is a supporting wall, a decorative wall, or even a different roof.
2. The Core Material
In Logical Reasoning, arguments are built from statements. A conclusion is a statement that the author is trying to convince you of, while premises are statements offered as reasons or evidence to support that conclusion. Sometimes there are also intermediate conclusions, which are supported by other premises but then go on to support the main conclusion.
2.1 Identifying the Main Conclusion

Photo by Ann H on Pexels
The main conclusion is the ultimate point the author wants you to accept. It's what the entire argument is driving towards. It doesn't support any other statement in the argument.
Look for conclusion indicators like:
* Therefore, thus, hence, so, consequently, accordingly, it follows that, proves that, shows that, implies that, must be true that.
* Clearly, it is clear that, obviously, should, ought to.
Also, look for premise indicators to help identify what isn't the main conclusion:
* Because, since, for, for example, given that, in that, as, due to, granted that, in view of the fact that.
The main conclusion often appears at the beginning or end of a paragraph, but it can be anywhere. A good test is to ask: "What is this author really trying to convince me of?" or "Which statement, if false, would most severely undermine the author's entire point?"
2.2 Understanding Argument Roles

Photo by Keira Burton on Pexels
Argument Role questions focus on a specific statement, usually highlighted or referenced by line number. You need to determine how that statement functions within the argument. Is it:
* A premise (evidence/reason)?
* The main conclusion?
* An intermediate conclusion (supported by premises, but also supports the main conclusion)?
* A counter-premise (introduces an opposing viewpoint or fact that the author then tries to refute)?
* Background information (factual information not directly part of the argument structure, but provides context)?
* A concession (acknowledges a point against the author's position but doesn't weaken the author's overall argument)?
Here's a diagram to help visualize the flow:
graph TD
B["Background Info / Context"] --> P1["Premise 1"];
P1 --> IC["Intermediate Conclusion"];
P2["Premise 2"] --> IC;
IC --> MC["Main Conclusion"];
P3["Premise 3"] --> MC;
CP["Counter-Premise"] --(Author Refutes)--> MC;
2.3 Strategy for Both Question Types

Photo by Ann H on Pexels
- Read Actively: Understand what each sentence is saying.
- Identify the Core Claim: What is the author's central point? This is likely the main conclusion.
- Map Relationships: Draw arrows in your head (or on scratch paper) showing what supports what.
- Statement A supports Statement B means A is a premise for B.
- Look for Indicators: "Because" signals a premise; "therefore" signals a conclusion.
- Test Conclusions: If you think a statement is the main conclusion, try inserting "because" before each of the other statements. If they logically become reasons for your chosen conclusion, you're likely on the right track. If another statement seems to be supported by your chosen conclusion, then your chosen conclusion is likely an intermediate one, or even a premise for that other statement.
3. Worked Example
Consider this argument:
"Recent studies show that daily exercise significantly reduces stress levels. Moreover, people who exercise regularly tend to report higher overall life satisfaction. Therefore, promoting daily exercise programs in workplaces is an effective strategy for improving employee well-being. Of course, not everyone enjoys exercising, but the health benefits far outweigh this minor drawback."
Question Type: Main Conclusion
- Read Actively: The first two sentences state facts about exercise. The third sentence makes a policy recommendation. The last sentence acknowledges a downside but dismisses it.
- Identify the Core Claim: The author is trying to convince us that promoting exercise programs in workplaces is a good idea.
- Map Relationships:
- "Recent studies show that daily exercise significantly reduces stress levels." (Premise)
- "people who exercise regularly tend to report higher overall life satisfaction." (Premise)
- These two premises support the idea that promoting exercise is effective.
- "Of course, not everyone enjoys exercising" (Counter-premise/Concession)
- "but the health benefits far outweigh this minor drawback." (Rebuttal/Premise supporting the main conclusion)
- Look for Indicators: "Therefore" precedes "promoting daily exercise programs..."
- Test Conclusions: If "promoting daily exercise programs in workplaces is an effective strategy for improving employee well-being" is the main conclusion, then the other statements should support it.
- "Daily exercise reduces stress" supports it.
- "Regular exercisers report higher life satisfaction" supports it.
- The "not everyone enjoys" part is addressed and dismissed to reinforce it.
The main conclusion is: "promoting daily exercise programs in workplaces is an effective strategy for improving employee well-being."
If the question was an Argument Role question asking about "Recent studies show that daily exercise significantly reduces stress levels," the answer would be "a premise offered in support of the main conclusion."
4. Key Takeaways
- The main conclusion is the statement the author is ultimately trying to prove; it doesn't support any other statement in the argument.
- Premises are statements given as reasons or evidence to support a conclusion.
- Indicator words like "therefore" often signal a conclusion, while "because" often signals a premise.
- An intermediate conclusion is supported by premises but also acts as a premise for the main conclusion.
- Counter-premises acknowledge opposing points but are usually followed by a rebuttal to reinforce the author's main point.
Common Mistakes to Avoid:
- Don't confuse an intermediate conclusion with the main conclusion; the main conclusion is the final destination.
- Don't pick background information as a premise or conclusion; it sets the stage but isn't part of the argument's logical structure.
- Don't assume the first or last sentence is always the main conclusion; it can appear anywhere.
- Don't confuse a factual statement for a conclusion unless the author uses it to support another claim.
5. Now Try It
Read the following short argument:
"Many scientists believe that the search for extraterrestrial life is a waste of resources. However, the discovery of even microscopic life forms on another planet would fundamentally change humanity's understanding of the universe. Moreover, the technological advancements made during the search, such as improved telescope optics, have significant terrestrial applications. Consequently, the search for extraterrestrial life is a worthwhile endeavor."
Identify the main conclusion of this argument. Then, for the statement "the technological advancements made during the search, such as improved telescope optics, have significant terrestrial applications," describe its role in the argument.
What success looks like: You correctly identify the single main conclusion and accurately describe the function of the specified statement (e.g., "It's a premise that supports the main conclusion").
Frequently asked about Main Conclusion and Argument Role Questions
More from LogIcal reasoning for tHE LSAT for weaken, main conclUSION, strengtHEN, and flaw qUEstIoN types
Get the full LogIcal reasoning for tHE LSAT for weaken, main conclUSION, strengtHEN, and flaw qUEstIoN types curriculum
Clone the complete plan to your dashboard for unlimited AI-generated notes, practice quizzes, and a personalised revision schedule.
Save this course free