P-Hacking Criticism

Discussions center on accusations of p-hacking in a scientific study, highlighting issues like multiple testing, false positives, and post-hoc hypothesis testing, often referencing XKCD comics and other explanatory resources.

πŸ“‰ Falling 0.4x Science
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Keywords

XKCD NYT HN fivethirtyeight.com ONLY youtu.be CTR wikipedia.org i.e IID hacking statistical data test significant tests hypothesis xkcd testing significance

Sample Comments

ARandomerDude β€’ Oct 28, 2021 β€’ View on HN

No. It's called p-hacking, and it's a sleazy way to get published.https://youtu.be/42QuXLucH3Q

dmichulke β€’ Dec 31, 2018 β€’ View on HN

P-Hacking: https://projects.fivethirtyeight.com/p-hacking/

317070 β€’ Dec 31, 2020 β€’ View on HN

As someone who knows a thing or two about statistics, this looks as a painfully wrong interpretation of the data. Essentially this is p-hacking, although it might be inadvertant by the authors.This XKCD explains it well: https://xkcd.com/882/So, if you have a lot of data, you don't get to try many things and then report the ones with high significance. I really doubt this result will stand in a

tome β€’ Jan 16, 2019 β€’ View on HN

Indeed. What you are describing is p-hackinghttps://en.wikipedia.org/wiki/Data_dredging

reagency β€’ Jul 7, 2015 β€’ View on HN

That sounds like a textbook case of p-value hacking and hypothesis fishing. Is there a solid statistical analysis on the space of hypotheses considered and the size of effects measured?

rhizome β€’ Jul 6, 2017 β€’ View on HN

Does that qualify as "p-hacking?"

PeterStuer β€’ Apr 24, 2024 β€’ View on HN

Is this p-hacking physic's edition?

Taek β€’ Jul 11, 2021 β€’ View on HN

They already have a problem with p-hacking

setopt β€’ Jul 24, 2024 β€’ View on HN

Relevant XKCD: https://xkcd.com/882/Do 20 experiments with a p<5% criterion, and it’s likely that one will be a false positive. Only publish positive results, and someone will eventually publish a false positive result without fraud.

nxpnsv β€’ Mar 10, 2020 β€’ View on HN

Such post hoc hypothesis trawling essentially is p hacking. Try a large enough set of explanations and your data will show something significant. Might be hard to replicate.