Should the sample size n be equal when we are looking for simple correlation? I mean is it OK if variable 1 has a little more or fewer observations than variable 2? I am computing correlation between ...
I am trying to compare correlations between subgroups of a variable. For instance, I am trying to compare the income of group 1 v. income of group 2 v. income of group 3 v. income of group 4, where ...
I have a data frame consisting of evaluations made by students of other student fellows. An excerpt of the evaluations data frame looks like this (columns are evaluators, rows correspond to the ...
I am trying to correlate age (6-90 yrs) with loudness of voice (in dB). However, my data do not contain any data points in the range of 20-50 yrs. What correlation measure is most appropriate with ...