Child development specialists have observed that adolescents who receive large weekly allowances tend to spend money on items considered frivolous by their parents whereas adolescents who receive small weekly allowances do not. Thus, in order to ensure that their children do not spend money on frivolous items, parents should not give their children large weekly allowances.
Which of the following pieces of information would be most useful in evaluating the validity of the conclusion above?
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AThe average amount of money received by adolescents who receive large weekly allowances
分析该选项
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BAny differences among parents in the standard used to judge an item as frivolous
分析该选项
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CThe educational background of the child development specialists who made this observation
分析该选项
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DThe difference between the average annual income of families in which the parents give their children large weekly allowances and that of families in which the parents give their children small weekly allowances
分析该选项
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EThe percentage of adolescents who receive no weekly allowance
分析该选项
显示答案
正确答案: B