PT131.S1.Q8 > Question

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The author hypothesizes that sugar consumption doesn’t exacerbate hyperactivity in children with attention deficit disorder. This is based on a study that showed no difference between children with attention deficit disorder who ate each of three sugars versus those who ate a sugar substitute.

To conclude that sugar doesn't affect hyperactivity based on this study, the author must assume that sugar substitutes also don't exacerbate hyperactivity. The author must also assume that if these three common sugars don't exacerbate hyperactivity, other common sugars also don't.

None of the study groups displayed more hyperactivity, regardless of which sugar they received. If anything, this strengthens the argument by making a mistaken interpretation even less likely.

The argument specifically discusses children with attention deficit disorder, and we don't know whether these "some" children overlap with that group. So, this isn't relevant.

If the sugar substitutes exacerbated hyperactivity, then the result of no difference means that sugar actually does exacerbate hyperactivity. That severely weakens the author’s hypothesis.

In other words, the children were observed in at least some different settings. We don't know how many or how varied the settings were though, so this isn't relevant.

How many children believe this? Are they correct? Without that information, we can't assume that the children generally knew which group they were in, so this is irrelevant.

PrepTest 131 - Section 1 - Question 8

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