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ISER Working Paper Series 2010-36

Data quality in telephone surveys and the effect of questionnaire length: a cross- national experiment

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Publication date

09 Nov 2010

Abstract

Respondents in long telephone survey interviews may adopt satisficing strategies as they approach the end of the questionnaire (Holbrook, Green and Krosnick, 2003). However, there is inconsistency regarding the relationship between questionnaire length and different forms of satisficing. We investigate whether long questionnaires are associated with a reduction in response quality using data from a cross-national survey experiment. Sample members were randomly assigned to interviews of 60, 45 or 30 minutes. We compare responses to attitudinal measures from a module on happiness and well-being, which was asked at different points in the interview in each of the three groups.

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