This study reports the findings of a comparison between different non-probability sampling methods applied in a WWW-user-survey.

In non-probability sampling, not all members of the population have a known or equal chance of being selected. This method is often used when the focus is on specific characteristics, or when ...

These results are consistent with the conclusion that non-probability samples yield data that are neither as accurate as nor more accurate than data obtained from probability samples.

This short paper investigates whether a volume-based approach to collecting opinions is a reasonable substitute for probability sampling.

Non-Probability Sampling Techniques In non-probability sampling, the sample is selected in such a way that the chance of being selected of each unit within the population or universe is unknown.

Non-probability samples provide a challenging source of information for official statistics, because the data generating mechanism is unknown. Making inference from such samples therefore requires a ...

Non-probability samples provide a challenging source of information for official statistics, because the data generating mechanism is unknown. Making inference from such samples therefore requires a ...