Uploaded May 2020 | Updated September 2026, 1 week ago
Statistical Power is one of those things that sounds so fancy and, well, "Powerful", but it's actually a really simple concept and this video explains it so it's clear as day.
NOTE: This StatQuest assumes that you are already familiar with p-values and the normal distribution. If not, check out the 'Quests...
p-values: What they are and how to interpret them: youtu.be/vemZtEM63GY
How to calculate p-values: youtu.be/JQc3yx0-Q9E
The normal distribution: youtu.be/rzFX5NWojp0
For a complete index of all the StatQuest videos, check out:
statquest.org/video-index
If you'd like to support StatQuest, please consider...
Patreon: patreon.com/statquest
...or...
YouTube Membership: youtube.com/channel/UCtYLUTtgS3k1Fg4y5tAhLbw/join
...buying one of my books, a study guide, a t-shirt or hoodie, or a song from the StatQuest store...
statquest.org/statquest-store
...or just donating to StatQuest!
paypal.me/statquest
Lastly, if you want to keep up with me as I research and create new StatQuests, follow me on twitter:
twitter.com/joshuastarmer
0:00 Awesome song and introduction
0:37 Concepts of Statistical Power
3:19 Definition of Statistical Power
4:57 Overlap and Statistical Power
6:35 Sample size and Statistical Power
7:03 Summary of concepts
#statquest #statistics
Statistical Power is one of those things that sounds so fancy and, well, "Powerful", but it's actually a really simple concept and this video explains it so it's clear as day.
NOTE: This StatQuest assumes that you are already familiar with p-values and the normal distribution. If not, check out the 'Quests...
p-values: What they are and how to interpret them: youtu.be/vemZtEM63GY
How to calculate p-values: youtu.be/JQc3yx0-Q9E
The normal distribution: youtu.be/rzFX5NWojp0
For a complete index of all the StatQuest videos, check out:
statquest.org/video-index
If you'd like to support StatQuest, please consider...
Patreon: patreon.com/statquest
...or...
YouTube Membership: youtube.com/channel/UCtYLUTtgS3k1Fg4y5tAhLbw/join
...buying one of my books, a study guide, a t-shirt or hoodie, or a song from the StatQuest store...
statquest.org/statquest-store
...or just donating to StatQuest!
paypal.me/statquest
Lastly, if you want to keep up with me as I research and create new StatQuests, follow me on twitter:
twitter.com/joshuastarmer
0:00 Awesome song and introduction
0:37 Concepts of Statistical Power
3:19 Definition of Statistical Power
4:57 Overlap and Statistical Power
6:35 Sample size and Statistical Power
7:03 Summary of concepts
#statquest #statistics
