"Vicarious thinking" was a key driver of score change in Delphi surveys for COS development and is facilitated by feedback of results
Many COS use Delphi surveys as a method of encouraging consensus, which is thought to be facilitated through enabling participants to review anonymous scores of other participants. This talk summarises the results of a study investigating the reasons for score change in Delphi surveys using between-round score change data from 3 Delphis used in COS development (anal, gastric and prostate cancers).
Marie Österberg and Christel Hellberg,
Swedish Agency for Health Technology Assessment (SBU)
The quality and usability of developed Core Outcome Sets (COS)
Mainly based on a systematic review of finished and ongoing core outcome sets relating to pregnancy and childbirth we will highlight and discuss some insights:
Should there be a limitation in the number of outcomes in a COS?
How important is it to determine how and when to measure the outcomes in the COS?
