p-values: What they are and how to interpret them

This StatQuest is all about interpreting p-values. You've seen them online or in publications, or heard about them, whispered in dark, rave filled dance clubs, but you've never understood what they were all about. This 'Quest is here to explain everything you wanted to know about how to interpret p-values. Bam!!!

To learn how the p-values were calculated in this video, see...
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0:00 Awesome song and introduction
0:17 Conceptual motivation for p-values
4:32 p-value defined
7:07 Different thresholds for a statistically significant p-value
9:16 p-values and hypothesis testing
9:47 p-values do not measure effect size

#statquest #pvalue

[hamman_samuel]

In an ideal world, all teachers should be this clear, intuitive, and fun!

[PritishMishra]

You can't imagine how much *EASY you are making* these confusing things or other people who are making this stuffs confusing !!! Love you man...

[firdawsnesrinemahboubi]

I'm astonished ... you explain the intuition behind this in 11 minutes while my teacher spent 3 hours trying to explain this !
Glad my sis recommended you ! ^^

[lindasegerious]

I'm sorry, but, for some of us, that the ice-cream truck arrives on time is extremely important.

[giraldiego]

If my Null Hypothesis is I will understand the concepts explained for you, then I get a p-value of 1 every single time.
Best teacher ever, period!

[phoenixfire]

You explain things so clearly, these videos are a gift to us all, especially to those like me studying for a statistics exam! Many thanks from Canada

[bhagyashreehote]

Cannot imagine a better and simpler explanation to p-values. Amazing! Loving all the contents of StatQuest. Feels like finding the key to the Real Treasure of stats concepts!! Hurray!!

[omgitsleila]

I really appreciate the slowed down, enunciated explanation as though you were explaining to a 5 year old. As someone with ADD, it's super hard for me to keep track of information especially if its even a little bit faster paced than this, but you explained everything perfectly as though it was made for me. Thank you !

[nicw]

omg I love how calm your voice is, I can actually feel relaxed trying to learn stats - thank you!

[emilylee]

I was struggling in my stats class lately but your videos SAVED me, thank you so much. I'll definitely be watching more of your videos. I wish my prof was as incredible as you!

[iamtrash]

I'm watching this deep into the night and the consious part of my brain is half-foot in the dreamland, quarter-foot in the limbo and only about the rest in the real world. This kind of explanation managed to get me to get this faster than it lulled me into sleep, so have my like good sir

[mykhailozadorozhnyi]

Thank god, you saved me. It was explained so perfect! May my gratitudes reach you wherever you are

[SHAMSHERSINGH-iupd]

I wish I had a teacher like you in my college days. You are out of the world. Really really love your work. Have a doubt in stats don’t worry!! We have Sir Josh Starmer.

[yashlakdawala]

Finally I don't dread this question in an interview. Godspeed to you!

[ajaybhat]

These videos are concise & easier to grasp than the 2hr Stats lectures at college. Thanks, Josh & Stats Quest Team!!

[jaggyjut]

It’s 12:25 am and finally understood what is p-value. BAM!!!

[m.candace]

My brain has been so enlightened, thus I feel so much better about p-values as well :D How many times did I read about this trying to understand it?! But this video concisely elucidated the concept so well, I'll return here if I need a refresh. Thank you Josh and Statquest! Double Bam!!

[drpkmath]

Sweet. P-value is one of what students are confused about the most in the study of statistics. With normal distribution, p-value is both theoretical and practical. This would elaborate this point as well. Nicely done!

[SebastianCrain]

This is the 4th video about p values I've watched and you finally make it make sense, thank you

[sakurasuzuki]

I finally got the concept of p-value and I’ve heard and read so many explanations, still left confused.
Thank you so much, you’re making the world a better place❤️