p-hacking: What it is and how to avoid it!

p-hacking is the misuse and abuse of p-values and results in being fooled by false positives. Some forms of p-hacking are obvious, but other are much more subtle. In this video, we talk about two forms of p-hacking and how to avoid them.

NOTE: This StatQuest assumes that you are already familiar with p-values, if not check out:
p-values: What they are and how to interpret them: https://youtu.be/vemZtEM63GY
How to calculate p-values: https://youtu.be/JQc3yx0-Q9E

Also, if you'd like to learn more about FDR, check out the 'Quest: https://youtu.be/K8LQSvtjcEo

⭐ NOTE: When I code, I use Kite, a free AI-powered coding assistant that will help you code faster and smarter. The Kite plugin integrates with all the top editors and IDEs to give you smart completions and documentation while you’re typing. I love it! https://www.kite.com/get-kite/?utm_medium=referral&utm_source=youtube&utm_campaign=statquest&utm_content=description-only

For a complete index of all the StatQuest videos, check out:
https://statquest.org/video-index/

If you'd like to support StatQuest, please consider...
Patreon: https://www.patreon.com/statquest
...or...
YouTube Membership: https://www.youtube.com/channel/UCtYLUTtgS3k1Fg4y5tAhLbw/join

...a cool StatQuest t-shirt or sweatshirt (USA/Europe): https://teespring.com/stores/statquest
(everywhere):
https://www.redbubble.com/people/starmer/works/40421224-statquest-double-bam?asc=u&p=t-shirt

...buying one or two of my songs (or go large and get a whole album!)
https://joshuastarmer.bandcamp.com/

...or just donating to StatQuest!
https://www.paypal.me/statquest

Lastly, if you want to keep up with me as I research and create new StatQuests, follow me on twitter:
https://twitter.com/joshuastarmer

0:00 Awesome song and introduction
0:28 Simple example of p-hacking
2:21 p-hacking defined
2:38 Multiple testing problem explained
7:29 Using FDR to compensate for multiple testing
8:52 A subtle form of p-hacking
11:26 Power analysis to prevent p-hacking
12:12 Summary of concepts

#statquest #pvalue

Видео p-hacking: What it is and how to avoid it! канала StatQuest with Josh Starmer