Delphi with feedback of rationales : how large can a Delphi group be such that participants are not overloaded, de-motivated, or disengaged?

Belton, Ian and Wright, George and Sissons, Aileen and Bolger, Fergus and Crawford, Megan and Hamlin, Iain and Taylor Browne Luka, Courtney and Vasilichi, Alexandrina (2021) Delphi with feedback of rationales : how large can a Delphi group be such that participants are not overloaded, de-motivated, or disengaged? Technological Forecasting and Social Change. ISSN 0040-1625 (In Press)

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    Abstract

    In this paper, we investigate the effect of Delphi group size and opinion diversity on group members’ information load as well as on their overall experience of the Delphi process - in terms of task involvement (enjoyment and interest) and in terms of group sway (the influence and helpfulness of others’ rationales). For Delphi applications involving the exchange of rationales between participants, we found no evidence that group sizes of up to 19 participants cause information overload or de-motivation and disengagement of participants.

    ORCID iDs

    Belton, Ian ORCID logoORCID: https://orcid.org/0000-0002-2479-6563, Wright, George ORCID logoORCID: https://orcid.org/0000-0002-4350-7800, Sissons, Aileen, Bolger, Fergus, Crawford, Megan, Hamlin, Iain, Taylor Browne Luka, Courtney and Vasilichi, Alexandrina;