The other – and arguably the biggest — difference is that the samples for these surveys are selected using so-called non-probability sampling methods. For decades, only probability – or random – ...

You can't do this with non-probability sampling methods. 2. Discuss the main types of probability sampling methods and explain their strengths and weaknesses. If you construct your sample by randomly ...

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

Across all social science disciplines, but in particular public administration, there is a shared concern about the costs of using traditional random samples to generate data, and its impact on ...