Invalid Vs. Valid Argument Forms (When are these applicable?)

CurlyQQQ

I did see a post on distinguishing these argument forms a little while ago, but my question is when are these applicable? I only imagine that these are helpful with SA, PSA, F/DW, type questions, though I imagine it could be useful in all question types. Are there any other sections of the LSAT where this lesson will be needed? How often/where do you find yourself coming back to these forms while studying or PTing?

BinghamtonDave

@CurlyQQQ said:
...I only imagine that these are helpful with SA, PSA, F/DW, type questions...

In addition to these question types, parallel and flaw parallel. You might also make use of the valid forms in some NA questions and of course MBT/some MSS questions.

I review valid argument forms 2-3 times per week.

David

akistotle

There are at least 1-2 questions per LR section that deal with valid/invalid arguments. I have a lot of examples from PT60s series, but I don't want you to waste those, so here are some from PT1-35:

PT17.S2.Q16 (PF): https://7sage.com/lsat_explanations/lsat-17-section-2-question-16/
PT23.S2.19 (Flaw): https://7sage.com/lsat_explanations/lsat-23-section-2-question-19/
PT24.S2.Q21 (SA): https://7sage.com/lsat_explanations/lsat-24-section-2-question-21/
PT27.S4.Q7 (Flaw): https://7sage.com/lsat_explanations/lsat-27-section-4-question-07/
PT35.S1.Q22 (SA): https://7sage.com/lsat_explanations/lsat-35-section-1-question-22/

CurlyQQQ

@akistotle @BinghamtonDave thanks!!