Increasing respondent engagement in composite time trade-off tasks by imposing three minimum trade-offs to improve data quality
| العنوان: | Increasing respondent engagement in composite time trade-off tasks by imposing three minimum trade-offs to improve data quality |
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| المؤلفون: | James W. Shaw, Surrey M. Walton, Thomas Kohlmann, Ruixuan Jiang, A. Simon Pickard, Axel C. Mühlbacher, Todd A. Lee |
| المصدر: | The European Journal of Health Economics. 22:17-33 |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 030503 health policy & services, Health Policy, Economics, Econometrics and Finance (miscellaneous), Trade offs, Task engagement, Time-trade-off, 03 medical and health sciences, 0302 clinical medicine, Data quality, Statistics, Linear regression, Respondent, 030212 general & internal medicine, 0305 other medical science, Psychology, Valuation (finance), Face validity |
| الوصف: | Web-based surveys are increasingly utilized for health valuation studies but may be more prone to lack of engagement and, therefore, poor data validity. The objective of this study was to evaluate the effect of imposed engagement (i.e., at least three trade-offs) in the composite time trade-off (cTTO) task. The EQ-5D-5L valuation study protocol and study design were adapted for online, unsupervised completion in two arms: base case and engagement. Validity of preferences was assessed using the prevalence of inconsistent valuations and expected patterns of TTO values. Respondent task engagement was measured using time per task. Value sets were generated using linear regression with a random intercept (RILR). The base case (n = 501) and engagement arms (n = 504) clustered at different TTO values: [base case] 0, 1; [engagement] -0.5, 0.45, 0.6. Mean TTO values were lower for the engagement arm. Engagement respondents did not spend more time per TTO task: [base case] 63.3 s (SD 77.9 s); [engagement] 64.7 s (SD 73.3 s); p = 0.36. No significant difference was found between arms for prevalence of respondents with at least one inconsistent TTO value: [base case] 61.1%; [engagement] 63.5%; p = 0.43. Both value sets had significant intercepts far from 1: [base case] 0.846; [engagement] 0.783. The relative importance of the EQ-5D dimensions also differed between arms. Both online arms had poor quality data. A minimum trade-off threshold did not improve engagement nor face validity of the data, indicating that modifications to the number of iterations are insufficient alone to improve data quality/validity of online TTO studies. |
| تدمد: | 1618-7601 1618-7598 |
| DOI: | 10.1007/s10198-020-01224-6 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::0d9db2e3447b418ceffd65fa5192f662 https://doi.org/10.1007/s10198-020-01224-6 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........0d9db2e3447b418ceffd65fa5192f662 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 16187601 16187598 |
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| DOI: | 10.1007/s10198-020-01224-6 |