随机试验“给了你吃惊的机会”,Duflo女士说。
The two economists made their names (and remade their discipline) by championing randomised trials.因支持随机实验这两位经济学家声名鹊起,而且从新的角度定义了他们的学科。
The most reliable evidence comes from large human trials – preferably randomised trials in which the treatment is compared to a placebo.最可靠的证据来自大型人体的试验- 最好是与服用安慰剂进行对比的随机治疗试验。