他指出，对于表现测验(performance test)而言，测验长度可以被认为是在测验中可能得到 的各个评分量表给出的分数的总和，这个总分数是由该测验的题目数量和评分制决定的。
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研究人员注意到，海豚在确定答案时会很着急地按下踏板，但在难度高的测验中则表现出犹豫。
The researcher noted that the dolphin is quite eager to press the paddle when it was sure of the answer, but exhibited hesitation during difficult trials.
他们在能力测验中表现很好，但是他们的黑人同事们没有，所以雇用他们的市政厅方面用测试结果作为依据没有提拔黑人。
They did well on a test, but none of their black colleagues did, so the city that employed them threw out the test and promoted no one.
这三位研究者将人体的对称性与他们在智力测验中的表现进行了关联。
These three researchers correlated people's bodily symmetry with their performance on intelligence tests.
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