"Intelligence" at best is an assumptive construct— the word’s meaning has never been clear.【61】 There is more agreement on t

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问题     "Intelligence" at best is an assumptive construct— the word’s meaning has never been clear.【61】 There is more agreement on the kinds of behavior referred to by the term than there is on how to interpret or classify them. But it is generally agreed that a person who has high intelligence is one who can grasp ideas readily, make distinctions, reason logically, and use verbal and mathematical symbols in solving problems. An intelligence test is a rough measure of a child’s capacity for learning, particularly for learning the kinds of things required in school. It does not measure character, social adjustment, physical endurance, manual skills, or artistic abilities. It is not supposed to — it was not designed for such purposes . 【62】 To criticize it for such failure is roughly comparable to criticising a thermometer for not measuring wind velocity.
    The other thing we should notice is that the assessment of the intelligence of any subject is essentially a comparative affair.
    【63】 Now since the assessment of intelligence is a comparative matter we must be sure that the scale with which we are comparing our subjects provides a "valid" or "fair" comparison. It is here that some of the difficulties which interest us begin. Any test performed involves at least three factors: the intention to do one’s best, the knowledge required for understanding what you must do, and the intellectual ability to do it. 【64】The first two must be equal for all who axe being compared, if any comparison in terms of intelligence is to be made. In school opulations in our culture these assumptions can be made fair and reasonable, and the value of intelligence testing has been proved thoroughly. Its value lies, of course, in its providing a satisfactory basis for prediction. Nobody is in the least interested in the marks a little child gets on his test; what we are interested in is whether we can conclude from his mark on the test that the child will do better or worse than other children of his age at tasks which we think require" general intelligence” .【65】On the whole, such a conclusion can be drawn with a certain degree of confidence, but only if the child can be assumed to have had the same attitude towards the test as the other with whom he is being compared, and only if he was not punished by lack of relevant information which they possessed.
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答案总的来说,这种结论的得出在一定程度上是有把握的,但是必须具备两个条件:能够假定这个孩子对测试的态度和与他比较的另一个孩子相同;他也没有因为缺乏别的孩子所具有的相关知识而被扣分。

解析 这是一个but的并列句,分句又是由两个并列的only if条件句组成的。on the whole总的来说 assume“假定”。
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