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03 Jun 2026, 21:53
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Difficulty:
55%
(hard)
Question Stats:
75% (01:34) correct
25%
(01:32)
wrong
based on 16
sessions
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Ms. Rayner found that her ten-year-old son, Mitchell, often failed to complete his homework even though she responded by giving him brief time-outs. She decided to try calmly explaining to him why completing homework was important instead of using time-outs. After three months of this approach, Mitchell still sometimes failed to complete his homework. Ms. Rayner concluded that explaining the importance of homework to Mitchell was no more effective than using time-outs in reducing his failure to complete homework.
Which of the following, if true by the end of the three months, would most call into question Ms. Rayner’s conclusion?
A. Mitchell was more likely to fail to complete his homework in public settings, such as after-school programs, than he had been before.
B. Ms. Rayner decided to investigate the effectiveness of systematically rewarding Mitchell whenever he completed his homework, as an alternative to using time-outs or explanations.
C. Ms. Rayner herself had rarely been given time-outs when she failed to complete assignments as a child.
D. Mitchell was failing to complete his homework less often than he had been when his mother had used time-outs.
E. Mitchell reacted negatively after explanations just as often as he had after time-outs.
Which of the following, if true by the end of the three months, would most call into question Ms. Rayner’s conclusion?
A. Mitchell was more likely to fail to complete his homework in public settings, such as after-school programs, than he had been before.
B. Ms. Rayner decided to investigate the effectiveness of systematically rewarding Mitchell whenever he completed his homework, as an alternative to using time-outs or explanations.
C. Ms. Rayner herself had rarely been given time-outs when she failed to complete assignments as a child.
D. Mitchell was failing to complete his homework less often than he had been when his mother had used time-outs.
E. Mitchell reacted negatively after explanations just as often as he had after time-outs.
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04 Jun 2026, 07:18
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Ms. Rayner found that her ten-year-old son, Mitchell, often failed to complete his homework even though she responded by giving him brief time-outs. She decided to try calmly explaining to him why completing homework was important instead of using time-outs. After three months of this approach, Mitchell still sometimes failed to complete his homework. Ms. Rayner concluded that explaining the importance of homework to Mitchell was no more effective than using time-outs in reducing his failure to complete homework.
Ms. Rayner's conclusion:
explaining the importance of homework to Mitchell was no more effective than using time-outs in reducing his failure to complete homework
Supporting premise:
After three months of this approach, Mitchell still sometimes failed to complete his homework.
We see that Ms. Raynor's reasoning is that since Mitchell still "sometimes" failed to complete his homework, the new approach was no more effective than the old one.
Which of the following, if true by the end of the three months, would most call into question Ms. Rayner’s conclusion?
The correct answer to this Weaken question will show that, even though the premise is true, the conclusion may not be.
A. Mitchell was more likely to fail to complete his homework in public settings, such as after-school programs, than he had been before.
This choice strengthens, rather than, weakens, the case for the conclusion.
After all, the fact that Mitchell became "more likely to fail to complete his homework" in certain settings tends to indicate that the new approach was less effective than the old one.
Eliminate.
B. Ms. Rayner decided to investigate the effectiveness of systematically rewarding Mitchell whenever he completed his homework, as an alternative to using time-outs or explanations.
The fact that she decided to investigate the effectiveness of a third approach doesn't indicate whether the second was more effective than the first.
Eliminate.
C. Ms. Rayner herself had rarely been given time-outs when she failed to complete assignments as a child.
Information on what occurred in the past when Ms. Rayner was a child doesn't indicate what's effective.
Eliminate.
D. Mitchell was failing to complete his homework less often than he had been when his mother had used time-outs.
This choice is interesting.
The supporting premise is that "Mitchell still sometimes failed to complete his homework."
At the same time, if this choice is true, then the fact the he "sometimes" failed to complete his homework doesn't necessarily mean that the new approach didn't work better.
After all, if the frequency of his failing to complete his homework decreased, then, even if he still failed to complete it sometimes, there's reason to believe that the new approach is more effective than the old one.
Keep.
E. Mitchell reacted negatively after explanations just as often as he had after time-outs.
If anything, this is in line with, rather than counter to, the conclusion that explanations are no more effective than time-outs.
Eliminate.
Correct answer: D
Ms. Rayner's conclusion:
explaining the importance of homework to Mitchell was no more effective than using time-outs in reducing his failure to complete homework
Supporting premise:
After three months of this approach, Mitchell still sometimes failed to complete his homework.
We see that Ms. Raynor's reasoning is that since Mitchell still "sometimes" failed to complete his homework, the new approach was no more effective than the old one.
Which of the following, if true by the end of the three months, would most call into question Ms. Rayner’s conclusion?
The correct answer to this Weaken question will show that, even though the premise is true, the conclusion may not be.
A. Mitchell was more likely to fail to complete his homework in public settings, such as after-school programs, than he had been before.
This choice strengthens, rather than, weakens, the case for the conclusion.
After all, the fact that Mitchell became "more likely to fail to complete his homework" in certain settings tends to indicate that the new approach was less effective than the old one.
Eliminate.
B. Ms. Rayner decided to investigate the effectiveness of systematically rewarding Mitchell whenever he completed his homework, as an alternative to using time-outs or explanations.
The fact that she decided to investigate the effectiveness of a third approach doesn't indicate whether the second was more effective than the first.
Eliminate.
C. Ms. Rayner herself had rarely been given time-outs when she failed to complete assignments as a child.
Information on what occurred in the past when Ms. Rayner was a child doesn't indicate what's effective.
Eliminate.
D. Mitchell was failing to complete his homework less often than he had been when his mother had used time-outs.
This choice is interesting.
The supporting premise is that "Mitchell still sometimes failed to complete his homework."
At the same time, if this choice is true, then the fact the he "sometimes" failed to complete his homework doesn't necessarily mean that the new approach didn't work better.
After all, if the frequency of his failing to complete his homework decreased, then, even if he still failed to complete it sometimes, there's reason to believe that the new approach is more effective than the old one.
Keep.
E. Mitchell reacted negatively after explanations just as often as he had after time-outs.
If anything, this is in line with, rather than counter to, the conclusion that explanations are no more effective than time-outs.
Eliminate.
Correct answer: D
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