HD FS 312W Lecture Notes - Lecture 35: Interactive Voice Response, Apache Hadoop, Internal Validity
16 Nov 2016
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Use historical data: data from past presidential elections. Polls are not an accurate strategy: some people might: Then hang up: do not want to participate. People participating: have something in common. Similar characteristics between people who decide to be a part of study. Using the past to predict the future: history. Social desirability: wanting to fit in. America different in past than it is now. What unique factors are not accounted for: voter id laws. Do not know when it will happen: trump"s unique position. We did not have twitter years back. People"s responses to polls do not correspond to their voting behavior. Polls are too far out: do not account for intervening events. People do not want to vote for her anymore: people who were going to vote for her. Margin of error: results fall within a certain range.
