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Magic Mirror on the Wall, who has the smallest p of them all? (mander.xyz)

submitted 2 months ago by [email protected] to c/[email protected]

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[–] mkwt 25 points 2 months ago (2 children)

Adding onto this. p < 0.05 is the somewhat arbitrary standard that many journals have for being able to publish a result at all.

Is you do an experiment to see we whether X affects Y, and get a p = 0.05, you can say, "Either X affects Y, or it doesn't and an unlikely fluke event occurred during this experiment that had a 1 in 20 chance."

Usually, this kind of thing is publishable, but we've decided we don't want to read the paper if that number gets any higher than 1 in 20. No one wants to read the article on, "We failed to determine whether X has an effect on Y or not."

[–] Wilzax 11 points 2 months ago

Which is sad because a lot of science is just ruling things out. We should still publish papers that say that if we do an experiment with too small of a sample, we get an inconclusive result, because that starts to put bounds on how strongly a thing gets affected, if an effect occurs at all.

[–] [email protected] 6 points 2 months ago (1 children)

That's a shame. Negative results are very important to the process.

[–] [email protected] 2 points 2 months ago

Especially considering that PDFs can be just a few Mb, and I doubt people will care if they're not cached locally.