Delphi Method


The Delphi method was developed by RAND in the 1950s to forecast the effect of technology on warfare. It has since been applied to health care, education, management, and environmental science. Today, groups of experts or stakeholders use online tools such as ExpertLens to anonymously answer questionnaires, receive feedback that represents the “group response,” discuss, and revise their answers to see whether they can approach expert consensus.

  • Tool

    ExpertLens: An Online Modified-Delphi Approach to Stakeholder Engagement and Expert Elicitation

    When making complex decisions, researchers and policymakers often seek the input of many stakeholders and individuals with varied perspectives. ExpertLens is an online, modified-Delphi application developed by research and programming experts at the RAND Corporation to help achieve these goals easily and cost effectively.

    Oct 25, 2021

  • One doctor walking into a room to meet another doctor, illustration by Malte Müller


    Giving Patients a Voice in Medical Guidelines

    Clinical guidelines are the user manuals of modern medicine. They can dictate insurance coverage and help hospitals set quality standards. Yet they often lack the perspective of those who care the most about good treatment: patients and their caregivers. Researchers are working to change that.

    Dec 31, 2019

Explore Delphi Method