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General questions relating to LSAT Logical Reasoning.
  • Posts: 1
  • Joined: Oct 12, 2020

I am struggling with justify the conclusion assumption questions and straight strengthen questions. I am getting around 50% of the correct when practicing (very nervous at this point.) Can you provide some specific techniques and strategies on how I should approach these questions types and what I should be looking for to identify the correct answer?
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PowerScore Staff
  • PowerScore Staff
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  • Joined: Jun 26, 2013
Hi evance2!

With Justify and Strengthen questions (as well as with any question type that involves a stimulus with an argument!) it is first important to fully analyze the argument. Identify the main conclusion, and be specific! I always underline the exact part of the argument that is the main conclusion and it's a habit I encourage you to adopt as well. Then, really think about how the premises support that conclusion. Remember that all LSAT authors believe that their arguments are solid--they believe the conclusions that they have given you and they believe that the premises stated prove that conclusion to be true. But most arguments on the LSAT are flawed, meaning that they have gaps, missing links, incorrect logic, etc. such that the premises given do not fully prove the conclusion as stated. And you need to be able to identify these logical gaps and weaknesses in arguments. So, again, the first step is just to fully analyze the argument by asking yourself: 1) what, specifically, is the main conclusion?; 2) how, specifically, do the premises support that conclusion?; and 3) why, specifically, do the premises not fully prove that conclusion?

With Strengthen questions, then, you are just looking for any new information in the answer choices that strengthens that conclusion in any way. The answer choice doesn't have to prove the conclusion, it just needs to help it out more than the other answer choices.

In Justify questions, you need to prove that conclusion 100%. For these, you can use the Justify Formula:

Premises + Answer Choice = Conclusion

If the answer choice is correct, then when you add it to the premises, it should prove that conclusion 100%.

Here are some additional resources on Justify questions that I encourage you to check out: ... questions/ ... questions/
Powerscore LSAT Podcast, episodes 11 and 12:

Hope this helps!


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