Video and Multimedia
Click on the following links. Please note these will open in a new window.
Video Link
- Watch a guide to the types of sampling and how they relate to the population.
- Watch a clip on how the US Census Bureau uses research to inform social policy.
Audio Link
- Listen to how sampling methods mattered in 2012 presidential election polls.
- Listen to an account of a study using a large convenience sampling method.
Encyclopedia Link
- Read an additional overview of probability sampling.
- Read an additional overview of nonprobability sampling methods.