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: How to calculate p-values: Also, if you'd like to learn more about FDR, check out the 'Quest: For a complete index of all the StatQuest videos, check out: If you'd like to support StatQuest, please consider... Patreon: ...or... YouTube Membership: ...buying one of my books, a study guide, a t-shirt or hoodie, or a song from the StatQuest store... ...or just donating to StatQuest! Lastly, if you want to keep up with me as I research and create new StatQuests, follow me on twitter: 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