SOCPSY 2K03 Chapter Notes - Chapter 12: Nonprobability Sampling, Sampling Frame, Sampling Error
9 Feb 2018
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Sampling: the process of selecting cases from the population. Population: the list of all elements in the group. Selecting a sample allows researchers to be efficient, economical, and effective in conducting research. Sampling: how people or other units of analysis are selected for a study. Units of analysis: the actual cases - people, countries, organizations, or newspaper articles - that are going to be analysed in the process of research. Probability sampling: each case is selected in such a way that it has a known probability of being selected a. b. The goal is to draw samples that are representative of the population, or reflect the population in all important aspects. Non-probability sampling: chooses cases that are in some respect typical or reflective of the issues that the researcher studies a. Three sources of bias that make a sample unrepresentative:
