Delphi – OMERACT

a structured, anonymous, and iterative consultation method used to achieve consensus among a group of experts or stakeholders. It involves multiple rounds of questioning, feedback, and re-rating to refine opinions and move toward agreement on key issues.

Synonyms: Delphi Survey, Delphi Method

Example
An OMERACT working group uses the Delphi Method to identify which patient-reported outcomes are most important for a new core domain set. Participants anonymously rate the importance of each domain over several rounds until consensus is reached.

Glossary: Dissensus
the absence of agreement or the presence of disagreement among individuals, groups, or organizations.
Glossary: Consensus
a general agreement or shared understanding reached by a group of people through mutual discussion, collaboration, and compromise.
Glossary: Consensus threshold
the predetermined level of agreement among participants in a group decision-making process that is considered sufficient to reach a conclusion, make a decision, or issue a recommendation.
Glossary: Core Domain Set
an agreed-upon group of outcome domains considered essential to define and report in all clinical trials and other research studies related to a specific health condition or disease.
Glossary: Multi-Collaborator Approach
a collaborative strategy that actively involves diverse stakeholders from different sectors, disciplines, and backgrounds in decision-making, problem-solving, and project implementation.