Riverside School claims that its new daily reading hour has improved students' reading speed.
Which of the following, if true, most strengthens the claim?

Students who attended the reading hour read faster at the end of the term than at the start, while a similar group who did not attend showed no change.Correct answerYour answerThe reading hour is held in the school library.Correct answerYour answerMany parents want the school to add a writing hour as well.Correct answerYour answerMost students say they enjoy the stories chosen for the reading hour.Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

To support "the reading hour improved speed", we need evidence that speed rose for those who attended and not for similar students who did not.
The comparison group does exactly that, ruling out a general rise that would have happened anyway. It strengthens the claim.
Where the hour is held and what parents want are irrelevant. Enjoying the stories is about liking, not about reading speed.

Worth noting

Enjoyment is the tempting distractor: it is positive about the reading hour but says nothing about speed.

Concept: Strengthening with a comparison group
Typical timeTypical: 70 s
Your timeYours: —

The rule this testsArguments: strengthen and weaken

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Ten questions from Statements, Conclusions and Assumptions, at your own pace.

Riverside School claims that its new daily reading hour has improved students' reading speed.Which of the following, if true, most strengthens the claim?

Explanation

Riverside School claims that its new daily reading hour has improved students' reading speed.
Which of the following, if true, most strengthens the claim?