Help with understanding correlation ...

Karabiner

TS Contributor
#2
It is statistically significant (p < 0.001). That means, based on the sample data,
you assume that in the population from which the sample was drawn the
correlation is different from (larger than) r=0.00000

With kind regards

Karabiner
 
#3
It is statistically significant (p < 0.001). That means, based on the sample data,
you assume that in the population from which the sample was drawn the
correlation is different from (larger than) r=0.00000

With kind regards

Karabiner

Thank you very much!

So I can say that correlation exists, higher the X, higher Y gets. But, what about .28? is it to low?
 

Karabiner

TS Contributor
#4
Thois is a sample coefficient. It is not the population coefficient. The sample coefficient is larger
or smaller than the true popuölation cvoefficient, due to sampling error. But in the present case,
the sampling error is small, because the sample size is large. So maybe the true coefficient is
near 0.28. Whether this large or small, depends on the field of study. In psychology, sociology,
medicine, biology r=0.3 is often considered medium sized. But if you had reason to assume
a coefficient of size r=0.8 or so, then 0.28 would obviously be small.

With kind regards

Karabiner