PrepTest 135, Section 1, Question 23
Physician: There were approximately 83,400 trampoline-related injuries last(60 more words not shown)
The dialogue provides the most(14 more words not shown)
- Atrampolines cause injuries(8 more words not shown)
- Bhome trampolines are(6 more words not shown)
- Cthe rate of(14 more words not shown)
- Dprofessional supervision of(10 more words not shown)
- Etrampoline use is(7 more words not shown)
Reading the argument
How serious were those injuries? A scraped knee and a broken neck would give us very different reasons for concern. The number 83,400 alone doesn't answer that question.
The physician uses that count to recommend a rule: trampolines should be used only with professional supervision. The enthusiast pushes back. Sales have risen faster than the number of injuries, and even supervised exercise involves some risk. Those points are offered against requiring supervision, not against the existence of trampoline injuries.
We could examine the enthusiast's numbers more closely. Sales aren't the same as users or hours spent jumping, so they don't directly establish the risk per user. But this question asks where the speakers disagree, not whose evidence wins. The clearest dispute is over the proposed requirement.
What we’re looking for
Keep a nearby distinction in mind: supervision might make an activity safer without being something that must be required every time. The enthusiast could accept the benefit and still reject the mandate.
Working the answers
- A
The enthusiast acknowledges trampoline injuries and says all exercise carries risk. There is no clear denial that trampolines injure a significant number of people. Disagreeing about what precaution is required doesn't mean denying the underlying injuries.
- B
Neither speaker compares home trampolines with other settings to identify the main source of injuries. The enthusiast's reference to home-trampoline sales doesn't establish what share of all injuries occurs on home trampolines. We can't assign a disagreement about a comparison neither makes.
- C
The physician gives a count for last year, not a position on whether the injury rate per user is rising or falling. Even a declining rate could seem dangerous enough to warrant supervision. Also, the enthusiast's sales comparison isn't a direct measure of users. We lack opposed positions on this exact claim.
- D
The enthusiast could agree that professional supervision reduces injuries. The objection is that some risk remains even with supervision and that requiring it isn't justified by the physician's argument. Whether supervision helps is different from whether it should be mandatory.
- ECorrect
The physician says trampolines should be used only under professional supervision. The enthusiast expressly disagrees and offers reasons against that restriction. Both speakers address the same proposed requirement, from opposite sides, so this is the supported point of disagreement.
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