Tutorial: How to get into trouble with statistics
Channel: Nils Berglund
Date: 2023-06-18

This presentation is based on a cautionary tale I often tell students in statistics classes. It is about malpractices such as p-hacking and HARKing, and why they can lead to erroneous results. 

Introduction: 0:00
The case of Prof. X: 2:10
p-hacking and HARKing: 5:03
Confirmation bias: 7:30
The scientific method: 12:10
Hypothesis testing: 13:18
Chi-square independence test: 21:33
p-hacking and HARKing explained: 26:57
The XKCD comic explained: 28:55
Conclusion: 33:37

XKCD comic:  https://xkcd.com/882/
Clever Hans, the horse that could count: https://en.wikipedia.org/wiki/Clever_Hans
Phdcomics, scientific method:  https://phdcomics.com/comics/archive.php?comicid=761
Euphemisms for lack of significance: https://mchankins.wordpress.com/2013/04/21/still-not-significant-2/
p-hacking:  http://en.wikipedia.org/wiki/Data dredging
HARKing:  https://en.wikipedia.org/wiki/HARKing
Phdcomics, the science news cycle: http://phdcomics.com/comics.php?n=1174
Further reading: https://simplifaster.com/articles/p-hacking-harking-scientific-replication/

#statistics #p-hacking #independence #significantlevel #significance