Understanding the differences between convenience, target, and self-selected samples. Representative samples and sampling are addressed multiple times in the cGMPs. For example, in Part 21 of the Code ...

Researchers interested in describing or understanding agroecological systems have many reasons to consider on-farm research. Yet, despite the inherent realism and pedagogical value of on-farm studies, ...

Sampling where the interviewer talks to the most accessible section of the population, ie, shoppers willing to stop and be interviewed. This is not random sampling. This is also known as Accidental ...

Since the inception of rigorous survey work, researchers have been forced—by time and budget constraints—to rely on a slew of sampling methods to estimate population parameters. Sampling is, of course ...

In a recent study published in JAMA Neurology, researchers characterized the neuropathological and clinical symptoms of chronic traumatic encephalopathy (CTE) among young brain donors exposed to ...