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, ...

To my knowledge, we have yet to have meaningful samples of the general population with regard to the prevalence of coronavirus, the distribution of its outcomes, and the build-up of immunity. What we ...

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 ...

How good are online convenience panels? They are certainly an economical and quick way of getting research data. Many companies have large respondent panels recruited online that can be contacted ...