Weaken Questions - - Question 34

Several studies have shown that hospitals are not all equally successful: patients are much more likely to die in som...

AndrewArabie December 16, 2022

Can't you discount B for the same reason given for A and C

The explanation says we can ignore A because we don't know how the difference in advanced degrees makes a difference in care between hospitals or which hospitals in the study have the higher concentration of advanced degrees. The explanation says we can ignore C because we don't know how experience changes care from one hospital to another and which hospitals have more experienced staff. This logic seems to apply to B. Without knowing which hospitals are stricken by more sever illnesses, how can we apply this to studies?

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Emil-Kunkin February 9, 2023

I think a better reason to discount a and c here is that we can't really say that the number of advanced degrees or that the turnover rate directly contribute to length of stay, but we know that illness severity does. Not that I disagree with the written explanation, but I think there are reasons to reject a and c that would not be reasons to reject b.

AndrewArabie February 10, 2023

Thanks Emil