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George Gallup's 1936 Election Prediction
During the 1936 United States presidential election, pollster George Gallup successfully predicted that Franklin Roosevelt would win in a landslide by utilizing scientific methods with much smaller samples. By publicly criticizing the Literary Digest's methods prior to the election and correctly guaranteeing his own prediction, Gallup demonstrated the effectiveness of careful survey methodology.
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Research Methods in Psychology - 4th American Edition @ KPU
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George Gallup's 1936 Election Prediction
Match each element of the 1936 Literary Digest straw poll with its correct description.
Why was the 1936 Literary Digest poll unable to accurately predict the presidential election outcome despite having a massive sample of over two million people?
If a modern researcher attempts to predict a national election outcome by only surveying individuals found on a magazine's subscriber list, they are repeating the same methodological error that led the 1936 Literary Digest poll to incorrectly forecast an Alf Landon victory.
Analyze the logical chain of events that led to the 1936 Literary Digest poll's failure. Arrange the following methodological steps in the order they occurred to demonstrate how the initial design choice resulted in a final incorrect prediction.
Based on their straw poll, which candidate did the editors of the Literary Digest incorrectly predict would win the U.S. presidential election in a landslide?
The primary reason the Literary Digest straw poll failed to predict the presidential election outcome was that the magazine received too few completed ballots to constitute a statistically useful sample size.
The 1936 Literary Digest straw poll illustrates several key sampling concepts. Match each feature of the poll to the methodological problem it best represents.
Analyzing the failure of the 1936 Literary Digest poll reveals that the root cause was not the number of ballots collected, but the composition of the _____, which systematically excluded lower-income Americans by drawing contacts from telephone directories and automobile owner registrations.
Suppose a student wants to judge whether a newly released national poll has the same critical flaw as the 1936 Literary Digest straw poll. Arrange the following evaluative steps in the most logical order to arrive at a defensible verdict about the poll's validity.
When evaluating the failure of the Literary Digest poll, researchers must conclude that the results were invalid because the editors incorrectly assumed that a high quantity of responses could compensate for a lack of sample _____.
Describe the basic methodology of the 1936 Literary Digest straw poll. Specifically, state who the two presidential candidates were, how the survey was distributed to Americans, and what prediction the editors made based on their findings.
Diagnose the methodological flaw in the Literary Digest's sampling frame. Explain how the choice of databases for the mailing lists introduced sampling bias and why this led to an incorrect prediction of the election's outcome.
A modern researcher is planning a survey to estimate community support for a new public transit initiative. Applying the lessons of the 1936 Literary Digest straw poll, why would drawing a sample solely from a list of local homeowners be problematic, and how should they design their sampling frame instead?
Learn After
Survey Research Center at the University of Michigan
George Gallup’s 1936 presidential election prediction is a landmark case in survey research. Why did Gallup’s poll produce a more accurate result than the Literary Digest poll, despite Gallup using a significantly smaller sample size?
Match each of George Gallup's specific methodological choices from the 1936 election prediction to the psychological research principle it best demonstrates.
Arrange the steps George Gallup followed during the 1936 election cycle to reflect the logical progression of his scientific challenge to traditional straw polling methods.
Based on the methodological outcomes of the 1936 presidential election, it is a scientifically sound evaluation to conclude that a large sample size is an effective substitute for a representative sampling methodology.
Prior to the 1936 election, what action did George Gallup take to publicly challenge the 'Literary Digest' poll?
George Gallup’s 1936 election prediction demonstrated that utilizing scientific sampling principles allows a researcher to accurately identify why a massive, non-scientific poll will fail before the results are even known.
In the 1936 U.S. presidential election, pollster _____ successfully predicted Franklin Roosevelt's landslide victory by using scientific survey methods with much smaller samples than his competitors.