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  3. The standardized educational or psychological tests that are widely used to aid in selecting, classifying, assigning, or promoti

The standardized educational or psychological tests that are widely used to aid in selecting, classifying, assigning, or promoti

admin2010-07-06  29
问题    The standardized educational or psychological tests that are widely used to aid in selecting, classifying, assigning, or promoting students, employees, and military personnel have been the target of recent attacks in books, magazines, the daily press, and even in Congress. 61) The target is wrong, for in attacking the tests, critics divert attention from the fault that lies with ill-informed or incompetent users. The tests themselves are merely tools, with characteristics that can be measured with reasonable precision under specified conditions. Whether the results will be valuable, meaningless,  or even misleading depends partly upon the tool itself but largely upon the user.
   All informed predictions of future performance are based upon some knowledge of relevant past performance: school grades, research productivity, sales records, or whatever is appropriate. 62) How well the predictions will be validated by later performance depends upon the amount, reliability, and appropriateness of the information used and on the skill and wisdom with which it is interpreted. Anyone who keeps careful score knows that the information available is always incomplete and that the predictions are always subject to error.
   Standardized tests should be considered in this context. They provide a quick ,objective method of getting some kinds of information about what a person learned, the skills he has developed, or the kind of person he is. The information so obtained has, qualitatively, the same advantages and shortcomings  as other kinds of information. 63) 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.
   64) In general, the tests work most effectively when the qualities to be measured can be most precisely defined and least effectively when what is to be measured or predicted’ can not be well defined. Properly used, they provide a rapid means of getting comparable information about many people. Sometimes they identify students whose high potential has not been previously recognized, but there are many things they do not do. 65) For example, they do not compensate for gross social inequality ,and thus do not tell how able an underprivileged youngster might have been had he grown up under more favorable circumstances.
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.
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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。
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