I'm going to quote my post because I don't think you read it in its entirety: “placebo effect, perhaps? The mind is a powerful tool”. I'll give you the benefit of the doubt and assume you just didn't read the entire post rather than you read it but didn't understand that it was the exact thing you just posted. In case you're not familiar with the placebo effect, it essentially states that if a person is given a sugar pill but is told it is a pain reliever, he/she may feel better just because they believe what they're taking is going to cure their malady. What I said is there is no CAUSAL relationship between the two events. So no, red panties didn't help you pass and they will never be the reason you pass, but if you want to strap those bad boys on, rub your lucky rabbits foot, chuck some salt over your shoulder, and hop 6 times on each leg alternating every third hop, before you take the exam, go for it.