I haven't studied for BEC yet, but for FAR and AUD (the only two I have any experience on, to date)….
I take notes while working the MCQ (and some practice SIMs, if they're not too complex). Always. If I get a question wrong, it gets written onto the notes to review later.
For FAR, since they're mostly numerical, I don't consider why the other ones that I didn't pick are wrong. For those that are conceptual, I don't think much about the other two wrong ones, if I pick one that is not correct. I try to figure out why I didn't pick the right one and trace my rationale backwards, as to why I picked the wrong one. Usually that works for FAR. It's a matter of knowing the stuff really really well. Well, all the exams are that way of course but FAR – for me – was mostly memorization. And as you can see from my score, I haven't yet been successful.
And the reason was because I forgot a lot of things studied in Chapters 1-17 and only really knew Chapters 18-30 because there is so much more for FAR than for any of the other 3. Which you knew already I'm sure.
For AUD, YES, figuring out why the others are wrong is paramount. You need to do that always for AUD and probably BEC too. Roger stresses this in Section 1, Lecture 1. For FAR, he actually says “if you see numerical answer choices, read the last sentence first.” I don't know if you used anything else except Ninja for your review. For AUD, the test question writers are absolutely notorious for having two very good or related answer choices. Probably for BEC too. The author of the Financial Auditing textbook I had in school was exactly the same way. Getting good at weeding out the incorrect answer choice of two equally enticing choices is a skill to be obtained, for sure….unless if you're a genius or somehow a real whiz at test-taking.
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