For the product moment coefficient, r, on what range of values is it considered strong ? why is 0.7 close to 1 but still not considered strong ?

Question

anonymous · Answer

@perl

ybarrap · Answer

It will depend on sample size. The value you consider strong will be relative to the two variables you are considering and the context in which you are using them.

anonymous · Answer

this is on the topic of correlation and regression

perl · Answer

do you have a book online

perl · Answer

according to this website , strong correlation is greater than r= 0.8

perl · Answer

http://stattrek.com/statistics/correlation.aspx

perl · Answer

you would have to define 'strong correlation'  mathematically (otherwise it is a bit vague)

perl · Answer

your book might give a definition, strong correlation is r > some decimal

anonymous · Answer

thanks perl :)

perl · Answer

|r| > some decimal