In August 2018, the ATP switched from telephone to address-based (ABS) recruitment. Invitations were sent to a stratified, random sample of households selected from the U.S. Postal Service’s Delivery ...

So reports a 2022 survey by Lifeway research (and see this summary, released June 6). This was apparently a "stratified random sample, drawn from a list of all Protestant churches," and the ...

For example, if a researcher wants to select a sample of 100 students from a population of 1,000, they could use systematic random sampling by selecting every 10th student from a list sorted in ...

Data were collected by an anonymous survey administered in a stratified random sample of undergraduate classes. The results revealed that among those respondents one to six years beyond high school, ...

The review uses a sampling method to estimate asset values—the sample is typically a stratified random sample. The AVR process is automated as much as possible to ensure that the valuation is ...

Stratified sampling more ... sample numbers—like testing every can produced—would not be meaningfully more powerful. They concluded that systematic or stratified random sampling patterns are ...