It's not a valid experiment if it has no chance of showing that my hypothesis is flawed.

如果根本没可能证明我的假设,是有瑕疵的，那么这个试验。

麻省理工公开课 - 计算机科学及编程导论课程节选

And yet get a valid test. Sometimes it can be timing. If you're running multiple processes.

有些时候当你运行多线程时,是因为时间的原因。

麻省理工公开课 - 计算机科学及编程导论课程节选

Yes, it's a wonderfully reliable test I'll test you today; I'll test you tomorrow; I'll test you next year; I'll test you the day you die; I'll get the same IQ score ? Is it a valid test?

是的，这是个非常可靠的测试,今天测试，明天再测试;,明年再测，到你死的那天再测;,得出的你的智商都还是一样,但这是个有效测试吗？

耶鲁公开课 - 心理学导论课程节选

What must this experiment have the potential to do, to be a valid scientific experiment?

实验必须有做什么的能力,才能被称为一个有效的科学实验呢？

麻省理工公开课 - 计算机科学及编程导论课程节选