近几年来，几乎所有的国家都开始关注测验——这是检验标准是否下降最常见的手段。

For the past few years, almost all countries have begun to focus more attention on testing, the commonest way to check if standards are falling.

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尽管样品将被使用，但测验仍在进行，一队卡车保险杠上的纳米结晶镍钨合金镀层仍在接受检验。

Proof, though, will come with use. Testing is already under way, with the nanocrystalline nickel-tungsten alloy being tried out as a plating on the bumpers of a fleet of trucks.

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单向 X 平方分布检验的另一个有趣应用是重新进行民意测验，以了解人们的回答是否已发生变化。

Another interesting application of the one-way Chi Square test is to repoll to see if responses have changed.

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