And also had blind evaluators-- people who didn't know which condition they were in, evaluate how they were walking.

还找来盲测员-,那些不了解情况的人，评估他们的走路。

哈佛公开课 - 幸福课课程节选

One thing to know methodologically is the person giving a choice is blind to the study.

研究方法上需要强调的一点是,主试对于实验来说是盲性的

耶鲁公开课 - 心理学导论课程节选