Is it a good idea to optimise question format for mode of data collection? Results from a mixed modes experiment
It is common practice to adapt the format of a question to the mode of data collection. Multi-coded questions in self-completion and face-to-face modes tend to be transformed for telephone into a series of â€™yes/noâ€™ questions. Questions with response scales are often branched in telephone interviews, that is, converted into two or more questions, each with shorter response lists. There has been limited research into the impact of these format differences on measurement, particularly across modes. We analyse data from an experiment that contrasted these question formats in face-to-face, telephone and web surveys. The study also included a cognitive interviewing follow-up to further explore the quantitative findings.
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- Gerry Nicolaas & Peter Lynn, 2002. "Random-digit dialling in the UK: viability revisited," Journal of the Royal Statistical Society Series A, Royal Statistical Society, vol. 165(2), pages 297-316.
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