Correlation: Pearson vs. Spearman

How do correlation analyses work? What is the difference between the parametric Pearson correlation and the nonparametric Spearman's Rank correlation? In a practical example the two analyses yield opposite results: One is significantly positive, the other significantly negative. This surprising result is explained graphically and by looking at the data set, but without using any mathematical formulas. After two influential outliers are excluded, the two coefficients arrive at the same result.

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[brendali]

Thanks for sharing. Very impressive example - the outliers really mess up Pearson's correlation, and Spearman's correlation is not sensitive with outliers.

[Brickkzz]

Great example - I selected the right analysis for my study!

[julesdrums]

Thank you! Very helpful for my understanding.

[billytbsiang]

I still do not understand. When I should use Pearson and when I should use Spearman?

[kavanpuranik]

Can we do a correlation between two different types of variables? Like linear vs ordinal?

[krauseyuan]

THANks! BUT how to check the discrete missing value automatically in a statistical method by SPASS if there is a large amount of data ?

[jennirose]

He sounds a bit like max verstappen lol. Good video tho helped me understand.