Arguably, Freud fails the test because Freudian theory is often so vague and flexible that it can't really be tested in any reliable way.

可以肯定的是，弗洛伊德的理论无法得到验证,因为精神分析理论的内容,太过模糊又太易变通,你无法通过任何可靠的方式,去验证它的正确性。

耶鲁公开课 - 心理学导论课程节选