手法を比較

	マルチソースデルファイ法	デルファイ法
分野	調査方法論	調査方法論
系統	Process / pipeline	Process / pipeline
提唱年	1975–2000s	1950s–1963
提唱者	Extension of the classic Delphi method; multi-source framing attributed to diverse practitioners building on Linstone & Turoff (1975)	Norman Dalkey and Olaf Helmer (RAND Corporation)
種類	Structured consensus-building technique	Iterative expert consensus technique
原典	Linstone, H. A., & Turoff, M. (Eds.). (1975). The Delphi Method: Techniques and Applications. Addison-Wesley.	Dalkey, N., & Helmer, O. (1963). An experimental application of the Delphi method to the use of experts. Management Science, 9(3), 458–467.
別名	Multi-stakeholder Delphi, Diverse-panel Delphi, Multi-group Delphi, MSDT	Delphi method, Delphi survey, expert consensus method, iterative expert panel
関連	3	6
概要	The Multi-source Delphi Technique is a structured, iterative consensus-building method that deliberately recruits expert panellists from multiple, distinct stakeholder groups or knowledge sources. By ensuring that no single professional community or institution dominates the panel, it reduces homogeneity bias and captures a broader range of perspectives than a conventional single-group Delphi. Panellists respond anonymously across successive rounds, receiving aggregated group feedback between rounds until consensus or a stable level of agreement is reached.	The Delphi technique is a structured, multi-round data collection method that harvests and refines expert opinion through iterative questionnaires and controlled feedback. Developed at RAND Corporation in the 1950s, it is designed to converge a dispersed expert panel toward a reliable consensus on complex, uncertain, or future-oriented questions — without the conformity pressures of face-to-face group discussion.