Mo2men wrote:DavidG@VeritasPrep wrote:Boiled way down the argument is this:
Limit stays to three days or fewer to reduce alcohol consumption.
Now imagine that you're going to Vegas, and the scenario in answer choice A is true. Well, if you limit your stay to 3 days, you miss out on drink specials! That's entirely consistent with the argument that limiting your stay will lead to less alcohol consumption. Certainly not a weakener.
Dear David,
Can you shed light about choice 'C'? It is still unclear how it strengthens the conclusion, as per Veritas explanation.
Official Explanation
"The correct response is (D). One way to weaken an argument is to provide an alternate reason for the conclusion. If there's another reason those who party 3+ times a week also drink more alcohol per visit, then people who want to drink less alcohol might not necessarily need to limit their club-going. (D) weakens the conclusion by suggesting that the 3+ a week partiers visit upscale clubs which have minimums.
If it's the drink minimums that is causing more consumption of alcohol, then it's possible recovering alcoholics could choose to visit non-upscale clubs without drink minimums 3+ times a week and not be at risk of over-consuming alcoholic. Since the conclusion is only concerned with Las Vegas clubs, (B) is irrelevant. (A) helps explain the conclusion, but does not weaken it, while (C) strengthens the conclusion."
thanks for help
Anytime we have a causality argument, there are two ways we can weaken it. First, it's possible that cause and effect are reversed. Alternatively, it's possible that there's a different underlying cause.
In this case, the argument - visiting a club more than 3 times per week leads to greater alcohol consumption - can be distilled using a simple arrow diagram.
Frequenting clubs more than 3 times week ---> greater alcohol consumption
D tells us that those who visited clubs more than 3 times a week tended to choose upscale clubs that had 2-drink minimums. Thus it was the two-drink minimum of upscale clubs that accounted for the greater alcohol consumption, rather than the fact patrons were at the clubs more often.
As an arrow diagram, it would look like this:
Frequented upscale clubs with 2-drink minimums ---> greater alcohol consumption.