A study comparing different statistical methods used to remove the effects of selection bias in observational studies finds that results may vary and caution may be warranted when interpreting ...

In Figures (a) and (b), the colors depict the uncertainty levels before and after applying optimal observations. In Figure (b), the labeled points and numbers indicate the positions of mooring sites ...

Statisticians point out that medical and other observational studies often produce results that are later shown to be incorrect. They now suggest ways to fix the system. S. Stanley Young, assistant ...