Learn the distinctions between simple and stratified random sampling. Understand how researchers use these methods to accurately represent data populations.

Attributing patients to an accountable care organization retrospectively may be more beneficial than prospective attribution, according to a study in Health Affairs. 1. Prospective method. In this ...

All six species of sea turtles found in U.S. waters are listed as endangered or threatened, but the exact population sizes of these species are unknown due to a lack of key information regarding birth ...

The 1951 Convention and the 1969 OAU Convention provide clear refugee definitions. The fact that more than 140 countries have acceded to the 1951 Convention or its 1967 Protocol, and many of these ...

The GARDE platform uses family history reported in the electronic health record (EHR) to systematically identify eligible patients for genetic testing for hereditary cancer syndromes. The goal of this ...

Scientists have developed a novel way to model whether the populations of more than 500 bird species are increasing or decreasing. The method solves a nagging statistical problem by accounting for ...