p-hacking and power calculations

P-values can be tricky things, and if we're not careful, we can report false positives much more frequently than 5% of the time. Here, I show how that can happen, and then I show to avoid it by doing power calculations - with an emphasis on the concepts behind the equations. 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:   / statquest   ...or... YouTube Membership:    / @statquest   ...buying one of my books, a study guide, a t-shirt or hoodie, or a song from the StatQuest store... https://statquest.org/statquest-store/ ...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:   / joshuastarmer   #statquest #pvalue