Learn Before
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?
Question: 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?
Sample answer: Drawing a sample solely from homeowners is problematic because it introduces sampling bias by over-representing wealthier residents who may have different transportation needs and opinions than renters. To avoid this, the researcher should use a broader sampling frame that includes all community residents, such as utility records or municipal registries, to ensure representation across all income levels.
Key points:
- Applied the concept of sampling frame bias to the homeowner list (over-representing wealthier residents).
- Recognized that the preferences of homeowners may differ systematically from the broader population.
- Proposed a solution to use a representative sampling frame that includes the entire community.
Feedback: Using only homeowners over-represents wealthier individuals, replicating the 1936 Literary Digest's sampling frame error. The researcher must design a sampling frame that represents the entire target population (including renters and lower-income residents) to avoid sampling bias.
0
1
Tags
KPU
Research Methods in Psychology - 4th American Edition @ KPU
Related
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?