I am using multiple regression analysis in a research study. While formulating research questions or hypotheses, which term should I use;
"Relationship of X & Y with Z" or "Association of X & Y with Z"
Is there any difference in these two terms?
I prefer the term relationship because I'm generally trying to model Z as a function of X and Y. BTW don't forget to look for curvature in your data.
Dear Fellows
I am studying Z as a function of X & Y, but there are some specific associations. Like Y has two sub-variables/dimensions/factors, similarly Z has two. And these factors are differently associated with each other. How to comment?
I believe that as long as your model is theory-driven, "relationship" is appropriate.
Pearson r and Spearman rho are always called measures of RELATIONSHIP.
Cramer's V, contingency coefficient, C, and Phi coefficient are called chi square based measures of ASSOCIATION.
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