Bunuel
Analyst: A recent survey showed that although professors of biology who teach but do not pursue research made up one twentieth of all science professors, they were appointed to fewer than one twentieth of all the scientific administrative positions in universities. We can conclude from this survey that failing to pursue research tends to bias university administrators against appointing these professors to scientific administrative positions.
Which one of the following, if true, most seriously weakens the support for the analyst’s conclusion?
(A) In universities there are fewer scientific administrative positions than there are nonscientific administrative positions.
(B) Biologists who do research fill a disproportionately low number of scientific administrative positions in universities.
(C) Biology professors get more than one twentieth of all the science grant money available.
(D) Conducting biological research tends to take significantly more time than does teaching biology.
(E) Biologists who hold scientific administrative positions in the university tend to hold those positions for a shorter time than do other science professors.
EXPLANATION FROM Fox LSAT
Ideally, the huge flaw in this argument has started to jump out at you by now. The evidence is about
correlation: biology professors who don’t do research are underrepresented in university administrative positions. (There’s a negative correlation between being a biology professor who doesn’t do research and getting an administrative position.) But the conclusion is causal: biology professors who don’t do research are underrepresented
because their lack of research subjects them to bias. This is totally speculative—other than the correlation, there is zero evidence to back up the causal relationship in the conclusion.
We’re asked to weaken the conclusion, so let’s attack the argument before we even look at the answer choices. Remember: Just because A and B are correlated doesn’t mean A causes B. Could B cause A (reversal of cause and effect)? Could C cause both A and B (something else causes an apparent relationship between A and B, even though A and B are actually not related at all)?
The reversal of cause and effect definitely seems possible here. Maybe the lack of an administrative position makes it harder to do research? Lack of funding, perhaps? If that’s true, then the argument is destroyed.
An alternate cause could also be at play here, and as a matter of fact, it’s suggested by the given facts. The facts say 1) biology professors who 2) don’t do research are underrepresented in administrative positions. And then it claims that the lack of research is the causal factor. But what about being a
biology professor? Might biology professors be discriminated against generally? If that’s true, then the argument is destroyed.
A) No, the argument was solely about “scientific administrative positions.” Nonscientific positions are simply not relevant.
B) Bingo. This matches our second prediction. If biologists are discriminated against
whether or not they do research, then how could the speaker claim that lack of research causes discrimination?
C) This is either irrelevant (Grant money? Where was that mentioned?) or it conceivably strengthens the idea that lack of research causes discrimination. There’s a ton of money for biology, but you don’t get the grant money unless you do research, so biologists who don’t do research get discriminated against. We’re looking for a weakener, and we’ve already found a great one in B, so we can go ahead and dismiss C.
D) I’m not sure what time management has to do with anything.
E) Length of tenure is also not relevant. The question is, “Why do bio professors who don’t do research get shafted?”
B says, “All bio professors get shafted,” which is just as good an explanation as the analyst’s proposed, “Professors who don’t research get shafted.” Since B casts some serious doubt on the analyst’s position, B is our answer.