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 ...

Observational Methods The emergence of comparative effectiveness has led to a renewed interest in the role of observational studies for assessing the benefits and harms of alternative interventions.

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 ...

ON April 28, Prof. H. H. Plaskett delivered his inaugural lecture as Savilian professor of astronomy at Oxford. Recalling the fact that the year of the foundation of the professorship was also that of ...