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Information and IdeasVery hardFinding that weakens a claim about an effect

Information and Ideas practice question

A school claims that its new breakfast club improved punctuality, since late arrivals fell by 40% in the term after the club opened.

Which finding, if true, would most directly weaken the school's claim?

  1. A. In the same term the council rerouted the school bus so that it arrived fifteen minutes earlier, and late arrivals fell by a similar amount at a nearby school with no breakfast club.Correct
  2. B. Pupils say they enjoy the breakfast club.
  3. C. The club serves porridge and fruit.
  4. D. The club is free to attend.

Answer: A. In the same term the council rerouted the school bus so that it arrived fifteen minutes earlier, and late arrivals fell by a similar amount at a nearby school with no breakfast club.

An earlier bus and the same fall elsewhere account for the change without the club.

Why the other answers are wrong

B. Pupils say they enjoy the breakfast club.
Enjoyment doesn't show cause.
C. The club serves porridge and fruit.
The menu is irrelevant.
D. The club is free to attend.
Cost is irrelevant to punctuality.

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