When no reasonable sampling frame exists and a probability sample cannot be drawn,at least estimates about the sample accuracy are available through nonprobability samples.

Question

Quizplus · Accepted Answer

Nonprobability samples do not allow for the estimation of sampling error in a statistically valid way because they do not involve random selection, making it impossible to assess the accuracy of the sample in relation to the population.

When No Reasonable Sampling Frame Exists and a Probability Sample