Well, first of all, I should note that the lead author from the original study does not necessarily agree with the findings of this meta-analysis. From the NYTimes coverage

那么，首先，我应该注意到原始研究的首席作者并不必然赞同这份元分析的研究。

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There is evidence that it does: a meta-study by the Sentencing Project, a think-tank, finds that black criminals receive somewhat harsher sentences than whites for similar offences.

这类看法有它的事实依据：美国审判项目组织(The Sentencing Project)智囊团的统计分析发现，对同一类型犯罪行为，黑人似乎比白人受到更严厉的判决。

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Study and show the anxious important cognitive factor is meta-worry.

研究认为焦虑的重要认知因素是元担忧。

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Miller, Wampold, and Varhely, 2008 was a meta-analysis study designed to see if there are differences in efficacy among treatment models applied to children and youth.

FORBES: There Are No Silver-Bullets in Education Reform

This type of study, known as a meta-analysis, can highlight problems that no single study typically can.

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While it would be a formidable task to check every study Wagenaar et al. subsumed in their meta-analysis, a quick check to find out whether they included a study with a known systematic bias reveals the study included Chesson et al., a study by the Centers for Disease Control which claimed that increased beer taxes could reduce the rate of gonorrhea.

FORBES: Pay More Tax And Cheat Death!