How to do a Pearson Correlation by Hand (13-7)

Doing a correlation example by hand is a great way to really understand correlation. We will begin with the assumptions for the data and the necessary settings for null hypothesis testing. Next, I will show you an example of using the correlation formula on a simple dataset. You will also learn how to test for the significance of a correlation using a t test. This will get you acquainted with the procedure. Then we will learn how to do it using statistics software.
This video teaches the following concepts and techniques:
Pearson Correlation by hand using formulas
Link to a Google Drive folder with all of the files that I use in the videos including the Effect Size Calculator for t Tests and datasets. As I add new files, they will appear here, as well.
drive.google.c...

[@sadiyah3327]

Your videos helped me alot, Thank you !!!

[@youthf7c343]

Thank you for this video. Especially the last part where you mentioned how to report the results.

[@ResearchByDesign]

Yes, the write-up is often neglected, but it is really important when you actually do a correlation. Glad that we could help.

[@asingularlittlefish]

thanks for the explanation! this really helped me to jog some old memories (maybe ;))
but, i would like to ask about CV. how do i search/calcute it?

[@chayanikasarma5288]

Hello sir, your videos are very helpful..thanks for sharing your valuable knowledge with us...However, i would like to ask whether the value of coefficient of determination can be used as an alternative to t-test here, as you have already said in another video that coefficient of determination measures the effect of independent variable on the dependent one..

[@ResearchByDesign]

It is a little more complicated than just using r-squared, but the long answer is that yes, you can. You can test whether a correlation coefficient is statistically significantly different than 0 or another coefficient, but you must convert the Pearson r (which is skewed) to Fisher's Z (which is normally distributed), then you can use it in a t-test formula. I have a spreadsheet I created on that...might be a good video to produce. Thanks.

[@chayanikasarma5288]

@@ResearchByDesign thank you sir for your kind response..

[@pgfinna]

I'm not going to say eating apples keeps one from doctor visits, but I am going to crush this apple right fast.