In which of the following types of research is the researcher most concerned with the representativeness of the sample used?

Question

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In survey research, the researcher collects data by sampling a population and asking questions to a representative sample of that population. Therefore, the representativeness of the sample is crucial to the validity of the research findings. In naturalistic observation, the researcher is more concerned with observing behavior in a natural setting, while in archival analysis, the focus is on analyzing pre-existing data. In experiments, the researcher is more concerned with controlling the variable being studied.

In Which of the Following Types of Research Is the Researcher