: more patients die in some hospitals vs others
: equal patient funding for all hospitals
: quality of care provided by staff is the variable
To weaken conclusion:
there must be another cause [variable] to explain the discrepancy
- it's reasonable to assume that the severity of illness can play a significant role in determining mortality
A - strengthens the argument, if staff in some of the hospitals are better-educated, they provide better care - exactly the opposite of what we need
C - same as A, strengthens the argument, although more indirectly, suggesting that a high staff turnover in some hospitals can account for worse care in some hospitals, which leads to higher mortality
D - merely gives us another given, like 'the same funding per patient in the surveyed hospitals'
E - that's really out of scope, we're concerned only with the hospitals which were surveyed
Searching for an answer...