MARK 4000 Lecture Notes - Lecture 8: Sampling Frame, Alf Landon, Franklin D. Roosevelt
8 Mar 2018
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Lecture 8 sample design and data collection. Sampling procedure flashcard!: define the target population, identify the sampling frame, select the sampling plan, determine sample size. Step 1: defining the target population: the more number of criteria, the smaller size of population, and the higher cost/time to find them, researchers must be clear/precise in defining the population. Population could be all of athens, then you could get the census information from all the people and the mean would be the parameter. Use total population so it is very accurate, but it costly and hard to do so people don"t often do it, hence the sample. Sample is drawn from population, so sample statistics allow inferences about population parameters. Step 3: select the sampling plan: non-probability sampling flashcards!, convenience: first people to answer, whoever happens to be around you, ex: local radio station asking for people to call in, **judgment sample/snowball sample:
