Challenges and lessons learned from using anchoring vignettes to explore quality of life response behavior.
Janine ToppChristoph HeesenMatthias AugustinValerie AndreesChristine BlomePublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2020)
Patients' ratings of anchoring vignettes fluctuate non-directionally over time. The think-aloud method appears not to be informative in exploring whether these fluctuations are due to changes in the individual decision process. Overall, vignettes might not be an appropriate approach to explore response shift, at least with regard to the specific target population and the use of the SF-12.