Morendil comments on How to Fix Science - Less Wrong

50 Post author: lukeprog 07 March 2012 02:51AM

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Comment author: Morendil 06 March 2012 12:23:29PM 4 points [-]

NHST uses "p-values," which are statements about the probability of getting some data (e.g. one's experimental results) given the hypothesis being tested.

Wait, that confused me. I thought the p-value was the chance of the data given the null hypothesis.

Comment author: Vladimir_Nesov 06 March 2012 12:26:43PM *  3 points [-]

Since NHST is "null hypothesis significance testing", the hypothesis being tested is the null hypothesis!

Comment author: Morendil 06 March 2012 12:43:16PM 9 points [-]

In the vernacular, when "testing a hypothesis" we refer to the hypothesis of interest as the one being tested, i.e. the alternative to the null - not the null itself. (For instance, we say things like "test the effect of gender", not the more cumbersome "test the null hypothesis of the absence of an effect of gender".)

In any case it wouldn't hurt the OP, and could only make it clearer, to reword it to remove the ambiguity.