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Information and IdeasHardFinding supporting a claim about a cause

Information and Ideas practice question

A planner claims that the new pedestrian crossing, rather than the lower speed limit introduced at the same time, is what reduced injuries on the road.

Which finding, if true, would most directly support the planner's claim?

  1. A. Injuries fell only within a hundred metres of the crossing, while on the rest of the road, where the lower limit also applies, they were unchanged.Correct
  2. B. Injuries on the road fell after both measures were introduced.
  3. C. Drivers on the road now travel more slowly.
  4. D. Pedestrian crossings are common in the town.

Answer: A. Injuries fell only within a hundred metres of the crossing, while on the rest of the road, where the lower limit also applies, they were unchanged.

The fall is local to the crossing, not to the limit.

Why the other answers are wrong

B. Injuries on the road fell after both measures were introduced.
Doesn't separate the two measures.
C. Drivers on the road now travel more slowly.
Points to the speed limit, if anything.
D. Pedestrian crossings are common in the town.
Irrelevant.

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