Sampling

The video tutorial explains the concept of sampling in psychological research, comparing it to medical blood sampling. It introduces key terms like target population, sample, representativeness, and generalizability. The tutorial distinguishes between probability and non-probability sampling, detailing methods like random and stratified sampling, and their challenges. It also covers non-probability sampling methods such as convenience, purposive, and self-selected sampling, highlighting their advantages and limitations. Finally, it emphasizes the importance of evaluating sampling methods based on what is measured, sample size, and representativeness.

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