What psychologists don't really know is why the Lake Wobegon effect exists, and there are a couple of proposals.

但心理学家还不知道,为什么乌比冈效应会存在，目前有几个假设。

耶鲁公开课 - 心理学导论课程节选

And the Lake Wobegon effect in psychology involves a systematic bias to see ourselves as better than average.

心理学上的乌比冈效应是说人都会,偏心地认为自己比一般人优秀。

耶鲁公开课 - 心理学导论课程节选