【正确答案】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，或是两者兼用，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。

【答案解析】[精解] Whether to use tests，other kinds of information，or both in a particular situation depends，there fore，upon the evidence from experience concerning comparative validity and upon such factors as cost and availability．
句子分析：
一、句子可以拆分为三段：Whether to use tests，other kinds of information，or both in a particular situation／depends，therefore，upon the evidence from experience concerning comparative validity／and upon such factors as cost and availability.
二、句子主干结构是：Whether to use．．．，or both．．．引导主语从句depends 是句子谓语， upon…and upon…是并列结构的双宾语。
三、词的处理：
Whether to．．．，or 是……还是……
both 指代前句的tests，other kinds of information；
in a particular situation 在某一特定情况下；
therefore 因此；
the evidence from experience 经验依据；
concerning与……有关的；
comparative validity 相对效度；
such factors as．．．诸如……等因素；