Randomised controlled trials (rcts), used to test drugs, are tricky.

用于测试药物的随机对照试验（rcts）很棘手。

A recent rct found that high doses of B6--100mg per day rather than the rda of 1.3mg--reduces anxiety.

最近的一项随机对照试验发现，高剂量的 B6（每天 100 毫克，而不是每日推荐剂量 1.3 毫克）可以减少焦虑。

In others, like major depressive disorder, there are cognitive, behavioral and psychodynamic interventions that have all been successful in RCTs.

在其他情况下，如重度抑郁症，认知、行为和心理动力学干预在 RCT 中都取得了成功。

And once enough researchers have run their own RCTs, you can gather data via meta analysis, measuring results across multiple trials to see basically whether a treatment works, and how well it does, across a variety of settings.

一旦足够多的研究人员运行了他们自己的随机对照试验，您就可以通过荟萃分析收集数据， 测量多个试验的结果， 以从根本上了解一种治疗是否有效，以及它在各种情况下的效果如何。