⊿ Point. {R} Glossary. ◢ Keyword: S. ◥ University. {q} PhD. {tr} Training. ⚫ UK. ↂ EndNote. ☝️ Weerakkody. Sampling frame. Importance of the sampling frame is stressed by Jessen[2] and Salant and Dillman.[3] In many practical situations the frame is a matter of choice to the survey planner, and sometimes a critical one. [...] Some very worthwhile investigations are not undertaken at all because of the lack of an apparent frame; others, because of faulty frames, have ended in a disaster or in cloud of doubt.— Raymond James Jessen Obtaining and organizing a sampling frame[edit] In the most straightforward cases, such as when dealing with a batch of material from a production run, or using a census, it is possible to identify and measure every single item in the population and to include any one of them in our sample; this is known as direct element sampling.[1] However, in many other cases this is not possible; either because it is cost-prohibitive (reaching every citizen of a country) or impossible (reaching all humans alive).
This list should also facilitate access to the selected sampling units.