"When you can't say for sure whether all the women in the advance provision group actually used the medication, then you're kind of looking at population level effect of a strategy, not the individual effect of a medication."

VOA: standard.2010.03.22

The control group that joined no intervention actually were more luckily to advance in their workplace 20, 30 years later.

未参与干预的对照组,更有可能在二三十年后获得升职。

哈佛公开课 - 幸福课课程节选

The control group that joined no intervention actually were more luckily to advance in their workplace 20, 30 years later.

未参与干预的对照组,更有可能在二三十年后获得升职。

哈佛公开课 - 幸福课课程节选