Information and IdeasVery hardFinding weakening a training-course claim
Information and Ideas practice question
A company claims that its new safety-training course caused the 25 percent fall in workplace accidents recorded in the year after the course was introduced.
Which finding, if true, would most directly weaken the company's claim?
- A. In the same year, the company replaced its oldest machinery, which had been involved in most of the previous accidents.Correct
- B. Employees rated the training course highly.
- C. Accidents fell by 25 percent in the year after the course began.
- D. Similar courses have reduced accidents at other companies.
Answer: A. In the same year, the company replaced its oldest machinery, which had been involved in most of the previous accidents.
If the machinery behind most accidents was removed at the same time, the fall could be the machinery's doing, not the course's.
Why the other answers are wrong
- B. Employees rated the training course highly.
- Ratings don't bear on what caused the fall.
- C. Accidents fell by 25 percent in the year after the course began.
- This restates the figure in the claim; it neither supports nor weakens the causal link.
- D. Similar courses have reduced accidents at other companies.
- Success elsewhere makes the course a MORE plausible cause, not less.
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