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17 May 2022, 01:30
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Question Stats:
73% (01:33) correct
27%
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wrong
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Being an only child has little to do with a child's social development. A recent study that followed thirty only children and thirty-five first-born children to the age of three found that the two groups of children behaved very similarly to each other toward their peers, their parents, and other adults.
Which of the following, if true, most weakens the conclusion drawn above?
(A) The groups being compared did not contain the same number of children.
(B) More time was spent observing the interactions of children with their mothers than with their fathers.
(C) Most of the researchers involved in the study were persons who had no brothers or sisters.
(D) The first-born children were, on the average, nearly three when their parents had second children
(E) The "other adults" described in the study consisted mainly of members of the research team.
Which of the following, if true, most weakens the conclusion drawn above?
(A) The groups being compared did not contain the same number of children.
(B) More time was spent observing the interactions of children with their mothers than with their fathers.
(C) Most of the researchers involved in the study were persons who had no brothers or sisters.
(D) The first-born children were, on the average, nearly three when their parents had second children
(E) The "other adults" described in the study consisted mainly of members of the research team.
gloomybison
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17 May 2022, 03:10
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(A) The groups being compared did not contain the same number of children.
Would having the same number of children change anything? I am not sure but, statistically speaking it wouldn't really explain the behavior shown by the two groups
(B) More time was spent observing the interactions of children with their mothers than with their fathers.
Would this create a bias? may be but then we would expect children in two groups to show different behavior towards their mothers
(C) Most of the researchers involved in the study were persons who had no brothers or sisters.
Would this cast bias on the experiment? not really, ı mean we are noting down the children's behavior and reporting them, this wouldn't really be affected by researchers' having no siblings
(D) The first-born children were, on the average, nearly three when their parents had second children
Correct
This would weaken the argument because children who have siblings are having this experience for a very limited time, not long enough to affect their behavior, so this very group would be a wrong sample to conclude a study from
(E) The "other adults" described in the study consisted mainly of members of the research team.
This is irrelevant
Would having the same number of children change anything? I am not sure but, statistically speaking it wouldn't really explain the behavior shown by the two groups
(B) More time was spent observing the interactions of children with their mothers than with their fathers.
Would this create a bias? may be but then we would expect children in two groups to show different behavior towards their mothers
(C) Most of the researchers involved in the study were persons who had no brothers or sisters.
Would this cast bias on the experiment? not really, ı mean we are noting down the children's behavior and reporting them, this wouldn't really be affected by researchers' having no siblings
(D) The first-born children were, on the average, nearly three when their parents had second children
Correct
This would weaken the argument because children who have siblings are having this experience for a very limited time, not long enough to affect their behavior, so this very group would be a wrong sample to conclude a study from
(E) The "other adults" described in the study consisted mainly of members of the research team.
This is irrelevant
PyjamaScientist
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17 May 2022, 03:39
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The argument rests on the presupposition that the two test groups are different and have gone through different experiences. What if the "first borns" and "only childs" are not necessarily different but same and had similar experiences? Then you can not put your money on the conclusion stated by the author.
Choice (D) brings in the information that shines light on that crack. Because as per (D), the experiences that the "first borns" had were similar to the experiences that the "only childs" had. So, you can't reach a conclusion that the author has stated with this information in the picture.
Choice (D) brings in the information that shines light on that crack. Because as per (D), the experiences that the "first borns" had were similar to the experiences that the "only childs" had. So, you can't reach a conclusion that the author has stated with this information in the picture.
