Similarly, if I give you a personality test now and it says that you're anxious and defensive, well--and then give it to you tomorrow and it says you're calm and open minded, it's not a reliable test.
同样地, 如果我现在给你做一个人格测试表明你很焦虑和有防御心,而且明天的测试却说你很冷静和思想放,那这就不是一个可靠的测试。