Probability (random) sampling is always encouraged to obtain accurate information about the population.
However, it is not always appropriate to implement the most rigorous sampling techniques. This may be due to...
Resource constraints (funding, time, etc.)
Non-probability sampling methods can be used in descriptive, exploratory, and qualitative studies
Sometimes, if feasible, organizations choose to include everyone in their evaluations to inform internal practices and policies
Icon(s) used on this page:
Opens an external site or resourceOpens an external site or resource -- We are committed to digital accessibility for all. Please be aware you are navigating to an external site that may not adhere to our accessibility standards.