Here are examples of assets traditionally ... The Point-Biserial correlation is used when one variable is continuous and the other is binary. These different methods provide various insights ...

During treatment, respiratory status (coded here as 0=poor, 1=good) is determined for each of four visits. The variables center, treatment, sex, and baseline (baseline respiratory status) are ...

If a case being observed is a function of two variables then this will induce an artifactual negative correlation between ... In these examples the censorship bias implied by conditioning on ...