English, Article edition: Maximising Responses to Discrete Choice Experiments: A Randomised Trial Joanna Coast; Terry N. Flynn; Chris Salisbury; ...

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Bookmark: http://trove.nla.gov.au/version/93271
Physical Description
  • article
Language
  • English

Edition details

Title
  • Maximising Responses to Discrete Choice Experiments: A Randomised Trial
Author
  • Joanna Coast
  • Terry N. Flynn
  • Chris Salisbury
  • Jordan Louviere
  • Tim J. Peters
Physical Description
  • article
Notes
  • Objective: To identify any differences in response and completion rates across two versions of a questionnaire, in order to determine the trade-off between a potentially higher response rate (from a short questionnaire) and a greater level of information from each respondent (from a long questionnaire). Methods: This was a randomised trial to determine whether response rates and/​or results differ between questionnaires containing different numbers of choices: a short version capable of estimating main effects only and a longer version capable of estimating two-way interactions, provided certain assumptions hold. Best-worst scaling was the form of discrete choice experimentation used. Data were collected by post and analysed in terms of response rates, completion rates and differences in mean utilities. Results: Fifty-three percent of individuals approached agreed to take part. From these, the response to the long questionnaire was 83.2% and the short questionnaire was 85.1% (difference 1.9%, 95% CI -7.3, 11.2; p =​ 0.68). The two versions of the questionnaire provided similar inferences. Discussion/​conclusion: This trial indicates that, in a healthcare setting, for this complexity of questionnaire (i.e. four attributes and the best-worst scaling design), the use of 16 scenarios obtained very similar response rates to those obtained using half this number.
  • Questionnaires
  • RePEc:wkh:aheahp:v:5:y:2006:i:4:p:249-260
Language
  • English
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