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The unit your sampling is not a single person but a group
What is Cluster Random Sampling?
This type of sampling is considered "gold standard" because every participant has a equal chance of being selected
What is Random Sampling?
This type of sampling involves selecting participants who are simply available to the researcher.
What is Non probability sampling (convenience sampling)?
A teacher has a class list of 30 students. After randomly choosing the 2nd student as a starting point, she selects every 3rd student on the list to answer a survey.
What is Systematic Random Sampling?
The population is divided into subgroups (strata) based on important characteristics (e.g., race, gender, income level), and participants are randomly selected from each subgroup in proportion to their presence in the population.
What is Stratified Random Sampling?