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04 Jul 2025, 08:28
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Great question, I took it in completely dimension and got a wrong answer.
Answer: C.
(A) notes that most engineers who leave during their first year do so voluntarily, often to join competing firms. This answer choices never addresses whether certified engineers leave at a greater rate than non-certified engineers, so it fails to undermine the comparison that drives the argument.
(B) states that Company Z offers no incentives for employees to obtain professional certifications; because the argument hinges on the existing percentages of certified versus non-certified engineers rather than on company policy, this information is irrelevant and has no weakening effect.
(C) reveals that engineers are not required to report certifications acquired before joining the firm. If a sizeable share of certified engineers simply omit this information, the true company-wide percentage of certified engineers could be far higher than the reported eight percent, erasing or even reversing the apparent gap with the twelve-percent figure for early leavers and thus sharply weakening the conclusion.
(D) observes that most engineers already work on agile teams, but the prevalence of agile methodology does not speak to whether certification influences turnover, leaving the numerical comparison intact, and this point irrelevant.
(E) points out that some engineers obtain their certification after joining the company, introducing a possibility of reverse causation (they join first and receive a certification later and then leave, all within the first year); however, unless these post-hire certifications are missing from the eight-percent baseline (meaning they join, receive certification and leave), the numerical contrast remains unchanged, so this option weakens the argument only marginally and is less effective than choice (C).
Bunuel
GMAT Club Official Explanation:
Answer: C.
(A) notes that most engineers who leave during their first year do so voluntarily, often to join competing firms. This answer choices never addresses whether certified engineers leave at a greater rate than non-certified engineers, so it fails to undermine the comparison that drives the argument.
(B) states that Company Z offers no incentives for employees to obtain professional certifications; because the argument hinges on the existing percentages of certified versus non-certified engineers rather than on company policy, this information is irrelevant and has no weakening effect.
(C) reveals that engineers are not required to report certifications acquired before joining the firm. If a sizeable share of certified engineers simply omit this information, the true company-wide percentage of certified engineers could be far higher than the reported eight percent, erasing or even reversing the apparent gap with the twelve-percent figure for early leavers and thus sharply weakening the conclusion.
(D) observes that most engineers already work on agile teams, but the prevalence of agile methodology does not speak to whether certification influences turnover, leaving the numerical comparison intact, and this point irrelevant.
(E) points out that some engineers obtain their certification after joining the company, introducing a possibility of reverse causation (they join first and receive a certification later and then leave, all within the first year); however, unless these post-hire certifications are missing from the eight-percent baseline (meaning they join, receive certification and leave), the numerical contrast remains unchanged, so this option weakens the argument only marginally and is less effective than choice (C).
04 Jul 2025, 08:42
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04 Jul 2025, 09:03
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Bunuel
I could come to an answer by understanding what the question probably meant, but the question is very confusing to understand. It states that 'x' amount of engineers left the company within their first year of employment, and 0.18x held the certification. So the rest 0.82x did not hold the certification. Now there is this annual HR survey that showed only had 8 percent of engineers holding that certification. So was this survey before the the engineers leaving, after the engineers leaving? Did those engineers fill the form? We already know that 18 percent of the engineers leaving had the certification.
What I first thought after reading was, 18% held the certification, some left, now only 8% hold the certification. So 10% engineers holding that certification left. Now I think this means that, there is x percent of people leaving, and there is y percent of people staying: 18%x sounds so much more than 8%y. There are more people holding the certificate who left compared to people holding it that stayed. But then again, we don't know the actual values of x and y. There could be a lot lesser people who left than people who stayed (y>x) and thus 8%y could just be much more than 18%x.
I could come to an answer by understanding what the question probably meant, but the question is very confusing to understand. It states that 'x' amount of engineers left the company within their first year of employment, and 0.18x held the certification. So the rest 0.82x did not hold the certification. Now there is this annual HR survey that showed only had 8 percent of engineers holding that certification. So was this survey before the the engineers leaving, after the engineers leaving? Did those engineers fill the form? We already know that 18 percent of the engineers leaving had the certification.
What I first thought after reading was, 18% held the certification, some left, now only 8% hold the certification. So 10% engineers holding that certification left. Now I think this means that, there is x percent of people leaving, and there is y percent of people staying: 18%x sounds so much more than 8%y. There are more people holding the certificate who left compared to people holding it that stayed. But then again, we don't know the actual values of x and y. There could be a lot lesser people who left than people who stayed (y>x) and thus 8%y could just be much more than 18%x.
Bunuel
