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When you want to do more than simply make inferences about a population!. Non-Probability sampling methods. Probability Sampling. What you actually observe in the data. What you want to talk about. Population . Sampling Process. Sample. Sampling Frame. Inference.
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When you want to do more than simply make inferences about a population! Non-Probability sampling methods
Probability Sampling What you actually observe in the data What you want to talk about Population Sampling Process Sample Sampling Frame Inference Using data to say something (make aninference) with confidence, about a whole (population) based on the study of a only a few (sample).
Probability sampling is designed to allow extrapolation from a small, highly representative sample, to a larger population. This statistical inference allows us to describe a population. Used when you want to answer the “where” and “how many” questions. Probability Sampling
Used when you want to say something about a discrete phenomena, a few select cases (people, places, objects, etc.) or when you want to answer the “how” and “why” questions. NON-Probability Sampling
