PSC 101 Lecture Notes - Lecture 5: Multiple Choice, Social Liberalism, Isolationism
17 Dec 2019
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Psc 101-008 chapter 5 notes - public opinion. Political polling helps the people"s voices be heard - accurately. scientific survey - systematic survey conducted using probability sampling to measure the attitudes of a representative sample of the public. Better than measuring public opinion by how the populations votes in elections because when individuals vote, they don"t have to agree with all that candidate"s opinions. Secret to success - making sure the sample is representative of the. The potential problem with surveys would be making sure that entire population of interest; close to equivalent proportions the sample population matches the population of interest"s demographics. Probability sampling - survey technique designed so every individual in a population of interest has an equal chance of being included in the pool of survey respondents. Too many variables leads to multiple conclusions. Should be controlling all variables besides one being tested. Statisticians use probability theory to estimate how much the.
