Continuous data were analysed using weighted mean difference (WMD).

连续数据的分析使用加权均数差(WMD)。

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The mean difference of the post-test was significant at the 0.05 level.

实验组和对比组时间的平均数差异经过t检验，在0.05的水平上具有显著性。

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AIM: To explore the standardized mean difference, the common effect size for ANOVA in medical research.

目的：探讨医学研究中方差分析常用的效应量——标准均数差的计算方法。

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Another reason is that a small change in temperature can mean the difference between snow and rain.

VOA: special.2010.01.05

And the answer is that-- yes it won't make a difference to our wellbeing but it also doesn't mean that we cannot increase our level of wellbeing.

答案是-,是的，它不会改变我们的幸福水平,但并不意味着,我们不能提升自己的幸福水平。

哈佛公开课 - 幸福课课程节选

The one difference it is going to mean, is that at times I might hold some of the discussions for the class, coming down into this part of the room, here, to make it a little easier for Jude.

还有希望大家都能相互理解一下,当我们举行课堂讨论的时候,请你们靠前站出来一点,这样便于裘德拍摄

耶鲁公开课 - 博弈论课程节选

The difference between understanding the aid formulas and not understanding them could mean a difference of tens of thousands of dollars.

FORBES: Paying for College: How the Financial Aid Formulas Work

Casting the right spell can often mean the difference between a flier and a flop.

FORBES: Is Your Product's Price Right?

The ability to deal with extreme heat can mean the difference between victory and defeat.

CNN: Silver secret behind golden hopes