请教各位一个research的基本问题导师给了我一个T or F 的问题 when P is 0.001, meaning there is 1% probability that the null hypothesis is not being true. 我的理解 If P=0.01, so there is a 1% chance that the data groups have no difference while 99% of the chance that the groups have differences. So this is statistically significant as p is less than 0.05. P value is the probability of getting the results if the null hypothesis is true. So we have a 1% of getting the result if the null hypothesis is true which is no difference. 所以我的答案是 false 然后prof说不对啊，这是基本问题咋答不上来呢。正确答案是true 我之后请教队友，队友跟我理解的还是一样。。 请教了工作友人医生们，还是跟我去理解的一样啊。 难道做了一堆trials发布过N篇papers的也理解错了这个P and Ho吗？ 导师还没来得及回答我问题，已经email她。今天我不死心七早八早又找了一堆basic的书，almond ans walker 就说 “the smaller the p value the smaller the likelihood that the null hypothesis is true”... 这也是跟我理解的一样啊。 是在无解，请教各位大神来看看。 -