RTC/OM HCBS Measurement Education Modules

Types of Sampling Methods

There are many ways of establishing a sample. The two methods most often used to select participants in a sample are probability and non-probability sampling.

Probability Sampling: Each member of the population has an equal chance of being included in the sample.

Non-Probability Sampling: Samples are drawn from the population by other means than probability sampling, (e.g. convenience, snowball, crowdsourcing) .