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Unformatted text preview: -samples must be random to produce useful polls-use random digit dialers-Leterary Digest poll was not random-biased on high incomes (and likelye race/age too) Other Issues-“non-attitudes”-randomness and instability over time-if attitudes are not genuine, they may change with tie-random or coerced responses-propensity to guess-social desirability effects-people who don’t know the answer seek info from the questions-questions can prompt or mislead...
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This note was uploaded on 10/04/2011 for the course POLS 1105H taught by Professor Schatzinger during the Spring '07 term at University of Georgia Athens.
- Spring '07