Conditional reasoning beginner needs your help
Posted: Sat Jan 28, 2012 6:16 pm
All,
In the rare case where a sentence is missing a conditional reasoning indicator (if, then, without, must, etc.) how do you distinguish between a sufficient condition and a necessary condition?
For instance, here's the last sentence of prep test 5 LR2 #22: "It is clear than with either a shortage of nurses or lowered entrance standards for the profession, the current high quality of health care cannot be maintained."
As you can see, there is no conditional reasoning indicator (or am I missing something?), but it is clearly a conditional statement. So what I tried to do was to think about what is necessary and what is sufficient in the sentence by fitting my own conditional indicators both ways to see which makes more sense between "If there is either a shortage of nurses or lowered entrance standards for the profession, then the current high quality of health care cannot be maintained," which sounds just as reasonable as, "If the current high quality of health care cannot be maintained, then there is either a shortage of nurses or lowered entrance standards for the profession." And is it not the case that it is entirely up to the author of the statement to decide which condition is necessary and which is sufficient?
The answer, if you were wondering, is the former: "either a shortage of nurses or lowered entrance standards for the profession" is the sufficient condition. But why is this so?
Cheers.
In the rare case where a sentence is missing a conditional reasoning indicator (if, then, without, must, etc.) how do you distinguish between a sufficient condition and a necessary condition?
For instance, here's the last sentence of prep test 5 LR2 #22: "It is clear than with either a shortage of nurses or lowered entrance standards for the profession, the current high quality of health care cannot be maintained."
As you can see, there is no conditional reasoning indicator (or am I missing something?), but it is clearly a conditional statement. So what I tried to do was to think about what is necessary and what is sufficient in the sentence by fitting my own conditional indicators both ways to see which makes more sense between "If there is either a shortage of nurses or lowered entrance standards for the profession, then the current high quality of health care cannot be maintained," which sounds just as reasonable as, "If the current high quality of health care cannot be maintained, then there is either a shortage of nurses or lowered entrance standards for the profession." And is it not the case that it is entirely up to the author of the statement to decide which condition is necessary and which is sufficient?
The answer, if you were wondering, is the former: "either a shortage of nurses or lowered entrance standards for the profession" is the sufficient condition. But why is this so?
Cheers.