Hi, All---
Can anyone please help me better understand this question? Critical Reasoning Guide, Cht. 7 (Weaken), #8 "Earnings Gap":
In the United States, adults who don't graduate high school earn on average 35% less than adults who do graduate high school. No other industrialized nation has such a severe earnings gap; adults without a HS diploma typically earn about 80 percent of the salaries earned by high school graduates in nations across Asia, Europe and elsewhere. These figures clearly indicate that American high schools are the world's best at teaching advanced skills to their students.
Each of the following statements, if true, weaken the author's claim EXCEPT:
A. Of all the industrialized nations, the United States has the lowest proportion of specialized tradesmen, people who often lack high school diplomas yet earn high salaries for their skills.
B. Due to recent global changes, in many newly industrialized nations advances in education precede advances in business infrastructure, resulting in a disparity between skilled employees and the jobs which would require these skills.
C. Unlike in the United States, in certain other industrialized nations it is possible for a student to attend a university without earning a high school diploma.
D. A survey of sixth graders around the world revealed that children in North America spend, on average, fewer hours per week studying than do their counterparts in Europe.
E. The unemployment rate for adults in the United States who didn't finish high school is significantly higher than the rate for their counterparts in most other industrialized nations.
Here was my thought process:
Re-phrasal: US HS degree harder than those of countries because US better at teaching advanced skills and that's why U.S. non HS grads make so much less.
A. At first, this statement sounded like it went along with the author's claim. The US HS degree is much harder to get, that's why the US doesn't have as many non HS grads who earn high salaries for their skills. But after thinking about it some more, I decided to mark this choice as weakening the argument, although for a reason different than the one given in the book. My reasoning was that this weakened the argument because someone could learn the advanced skills in a US HS, not graduate HS, but still could have learned enough in school to make a good living.
B. I put Strengthen. I thought that this statement just explained why some other nations' high schools weren't doing a better job "teaching advanced skills" - they simply didn't have the infrastructure.
C. I wasn't sure about this one. It sounded like it would strengthen the argument (foreign HS diploma not strong like US HS diploma, so it's not as important when applying to college.) But the guide says this weakens the argument. Can someone please explain to me where I'm going wrong?
D. I have a tough time with answer choices that involve questions of time spent. More time spent could be interpreted that the student is learning more or that the student is not as bright and takes longer to understand the material (like me!).
E. This sounded to me like it was strengthening the argument.
Basically, I put down the incorrect conclusion for virtually each answer choice. Any help would be greatly appreciated!
Still scratching my head...