Whether to use tests, other kinds of information, or both in a particular situation depends, therefore , upon the evidence from

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问题 Whether to use tests, other kinds of information, or both in a particular situation depends, therefore , upon the evidence from experience, and upon such factors as cost and availability.(Paragraph 3, Passage Four)

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答案因此,在某一特定情况下,究竟是采用测试还是其他种类的信息,或是两者同时使用,须凭有关相对效度的经验依据而定,也取决于诸如费用和有无来源等因素。

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