1 Over time, though, researchers and sample vendors have developed technologies and ... To address this, additional research reports on online nonprobability sampling are being planned. One will ...

Our conclusions about why that sample performed the best are preliminary ... nine samples and we did not experimentally test the effect of the sampling procedures or field length. Is nonprobability ...

Probability Sample: A sampling method where each member of the population has a known, non-zero chance of being selected. Non-probability Sample: A sampling approach that does not confer every ...