The EQ-5D-5L Value Set for England: Response to the "Quality Assurance".

Objectives: To respond to the 'quality assurance' of the EQ-5D-5L value set for England study.

Methods: We provide a point-by-point response to the issues raised by the authors of the quality assurance paper, drawing on theoretical arguments, empirical analyses and practical considerations.

Results: We provide evidence to show that many of the points made by the authors of the quality assurance are misleading, suggest misunderstandings, or are irrelevant.

Conclusions: The modeling approaches which were used appropriately address the characteristics of the data and provide a reasonable representation of the average stated preferences of general public in England. We provide reflections on the conduct of stated preference studies, and suggestions for the way forward.