SSH 301 Lecture Notes - Lecture 3: Institute For Operations Research And The Management Sciences, Content Analysis, Proportional Representation
30 Oct 2015
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Sampling: process of efficiently, economically, and effectively conducting research, how people/units of analysis are selected to be used in research, sample a subset of the population, selected by either probability or. They only asked rich, white people with telephones who they would vote for. Example: study: social variables (e. g. age, income, region of origin, gender, salary/income) relate to alcohol consumption, to be done at a university that has 9000 students. Steps: define the population (n) or 9000, devise a sampling frame, or list of elements in the population. Remember the famous sampling mistake: decide the sample size (n) 450. To get the random sample of 450 choose 4 columns because 9000 has 4 digits. If it goes over 9000 just skip it. (2) systematic sample: sampling interval is used it is a determination of what percentage of the population is to be selected for inclusion in the research (ex. Assume a sampling ratio of 1 in 20 or . 05.
