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 ...

Students learn about sampling by tracing improvements in sampling procedures over the twentieth century. Scientific inquiries involving flawed sampling are illustrated and discussed using the Literary ...