SCS 2150 Lecture Notes - Lecture 5: Simple Random Sample, Stratified Sampling, Sampling Frame
1 Aug 2016
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Sampling last thing done before u go onto the field (collect data) Know the three factors in identifying a population for a research project. Learn the three factors influencing the representativeness of a sample. Population - the group that we wish to generalize about. Three factors in identifying a population (**key words in sampling questions) for a research. Project: unit of analysis (individual mps, geographic location (canada, time period (those serving from 1993-2000, (ex: instead of studying members of parliament, you would state that you are studying canadian mps between 1993-2000 ) Advantages of sampling: (see end of this lecture) Three factors influencing the representativeness of a sample (**key words): (1) the accuracy of the sampling frame, (2) the sample size, (3) the method by which the sample is selected. All three factors are important - a weakness with respect to one cannot be compensated by strength with respect to another: sample frame:
