Flaw frequency

[moalkhaf]

Good morning. I was wondering if anybody could tell what flaw mentioned in the Powerscore Logical Reasoning Bible is the most common flaw that usually appears on LSAT'S.

[Dave Killoran]

Hi M,

It's an interesting question, in part because you can slice the data in multiple ways. For example, do you mean the flaws that appear in LR stimuli, or the ones referenced in just the answer choices? I suspect you are looking at the ones that appear in LSAT arguments themselves, and the answer there would be Errors in the Use of Evidence. However, that's a very broad category that includes many "catchall" types of errors. Plus, "most common" doesn't mean "majority" so there are other flaws that appear with a very high degree of frequency as well (for example, conditional and causal flaws are both fairly common).

Believe me, if there was just one or two flaws that you could study and then know they would appear in the majority of LSAT questions, I'd have them listed with a neon sign in the text But, the test makers are too smart to rely just on one or two horses, hence the broader, more comprehensive discussions you see us having that cover a lot of flaws.

Thanks!