PS295 Chapter Notes - Chapter 5: Simple Random Sample, Sampling Frame, Systematic Sampling
Document Summary
Sampling the process by which a researcher selects a sample of participants for a study from the population of interest. There are many different ways to select samples from a population. Population entire set of individuals of interest to a researcher. Usually very large, containing far too many individuals to study. Sample smaller set of individuals who participate in the study. Selected from a population, representation of demographic. Goal of the research is sometimes to examine the sample and then generalize the results to the entire population. Whether the characteristics of the sample accurately reflects the characteristics of the population at large. How closely the sample responses reflect those we would obtain from the entire population. Representative sample has characteristics the same as those in the population; correct demographic. Allows us to draw accurate, unbiased inferences about the population. The extent to which characteristics of individuals selected for the sample differ from those of the population.
