Based on Survey Data,the Literary Digest Erroneously Predicted That Alf

question 139

Multiple Choice

Based on survey data,the Literary Digest erroneously predicted that Alf Landon would beat Franklin D.Roosevelt in the upcoming presidential election.What cardinal rule of survey methods did the Literary Digest violate? Make sure

• A) respondents understand the survey.
• B) you have sampled randomly from the population.
• C) respondents are given more than one response option.
• D) responses are made anonymously.
• E) the survey questions are straightforward.

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Definitions:

Floor Effect

Failure of a measure to detect a difference because it was too difficult.

Paper-and-pencil Questionnaire

A traditional survey method where participants respond to questions written on paper by physically marking their answers.

Functional MRI

A neuroimaging technique that measures brain activity by detecting changes associated with blood flow.

Double-blind Technique

An experimental procedure in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.