POLS30040 Lecture Notes - Lecture 14: Standard Deviation, Oversampling, Simple Random Sample
1 Dec 2016
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Can help us identify problems in public policy. Kraft and furlong 3 approaches for policy analysis. Academics that are looking for truth and hard facts. Not so much weighing in policy debate. People in government agencies and think tanks. Examples are aclu, nra, and americans for democratic action. Focusing too much on results instead of how actually to achieve them. Cross sectional: a specific point in time. Obesity rates for a community in 2016. Longitudinal: unit of analysis over a period of time. Obesity rates in a given community from 2006-2016. Pana data: mix between cross sectional and longitudinal where the population stays the same. Some participants receive the drug and others receive a placebo. Stratified sampling: random selection from a subpopulation. Oversampling: oversample a subgroup more than their share of the population to draw accurate conclusions. Bias: when the sample is not representative of the larger group. You could weight responses to solve this.
