POL 2156 Lecture Notes - Lecture 11: Simple Random Sample, Stratified Sampling, Sampling Frame

• School: University of Ottawa
• Department: Political Science
• Course: POL 2156
• Professor: Stephanie Mullen

Document Summary

Know the 3 factors in identifying a population for a research project. Learn the 3 factors influencing the representativeness of a sample. Population the group that we wish to generalize about. Three factors in identifying a population for a research project. Time period those serving from 1993-2000. Example: instead of studying members of parliament, you would state canadian mps between 1993-2000 . Sampling can provide accurate estimates of the population parameters. Note: we are ultimately interested in the population and the population parameters; the sample and the sample statistics are merely a means to these ends. Three factors influencing the representativeness of a sample: 1) the accuracy of the sampling frame. 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. This is simply a list of all the units in the target population.