What is the most significant difference between the nominal group technique and the Delphi technique as forecasting approaches?

What is the most significant difference between the nominal group technique and the Delphi technique as forecasting approaches?

  1. With the nominal group technique, participants meet; with Delphi, they do not.
  2. With the Delphi technique, participants meet; with nominal group, they do not.
  3. Nominal group involves problem identification; Delphi does not.
  4. Delphi involves problem identification; nominal group does not.

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What is the most significant difference between the nominal group technique and the Delphi technique as forecasting approaches?
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What is the most significant difference between the nominal group technique and the Delphi technique as forecasting approaches?

International Journal of Clinical Pharmacy

Examples of studies using the Delphi Technique

AuthorsAimNo. of expertsExpertsNo. of rounds
Generate ideasDevelop criteria or guidelinesInvitedAgreedCompletingPharmacistsOther healthcare professionalsAcademics/ResearchersOtherIdea generationRating
Campbell et al. [31]3053057902
Cantrill et al. [33]–a 23814112
Cassar Flores et al. [36]18181802
Chan et al. [28]239902
Dean et al. [29]43342602
Mackellar et al. [30]38–a 3502
McBride et al. [39]1641094712
McDermott et al. [37]58534812