I get almost every single 5/5 difficulty NA or SA question right under the time limit, but every 2/5 and 1/5 difficulty question in these categories takes me 11 minutes and I still get em wrong. What is wrong with my idiot chungus brain

I started this question yesterday, said "nope", came back to it today, and got it right. SA questions are my worst type so far, so for anyone feeling discouraged, just remember this study journey is a type of training. It gets easier over time, and stepping away for a bit can actually make the training better in the long run. We've got this

For those who got this wrong, the gist of why D is correct is because you can extrapolate an explanation for the discrepancy between the two studies with every other answer choice. Even the assumptions you would make to choose E provide some kind of rational explanation for why people in the first study had better health outcomes. D literally says a placebo was used for some study participants. Note that results are compared to a placebo since this provides a "control" for the study in which results were ultimately extrapolated. So D has no impact. This question is hard because the answer that didn't provide an explanation also didn't contradict anything. The right answer was just the irrelevant one

I got this right in 5 minutes but was prematurely aged as a result of it. Thanks, LSAC!

I'm just gonna have to accept that I will get some questions wrong and not fully know why yet

I love when I spend 2 minutes overthinking a 1/5 difficulty question