Comparer des méthodes

	Q-Methodology for Environmental Discourses	Delphi Environmental Foresight
Domaine	Environmental Sociology	Environmental Sociology
Famille	Process / pipeline	Process / pipeline
Année d'origine	1999	1999
Auteur d'origine	John Barry & John Proops (environmental application); William Stephenson (Q methodology)	Gene Rowe & George Wright (synthesizing the RAND Delphi tradition)
Type	By-person factor-analytic discourse pipeline	Iterative anonymous expert-elicitation pipeline with controlled feedback
Source fondatrice	Barry, J., & Proops, J. (1999). Seeking Sustainability Discourses with Q Methodology. Ecological Economics, 28(3), 337-345.	Rowe, G., & Wright, G. (1999). The Delphi technique as a forecasting tool: issues and analysis. International Journal of Forecasting, 15(4), 353-375.
Alias	Q-Sort of Environmental Discourses, Environmental Q-Method, Sustainability Discourse Analysis with Q, Q Study of Environmental Perspectives	Environmental Delphi, Policy Delphi, Delphi Expert Elicitation, Iterative Expert Consensus Survey
Apparentées	3	3
Résumé	Q-methodology applied to environmental discourses is a way of systematically uncovering the distinct shared viewpoints that people hold about an environmental issue, by having them rank-order a set of statements and then factor-analyzing the sortings to group people with similar perspectives. John Barry and John Proops introduced its use for sustainability research in their 1999 Ecological Economics article, arguing that Q-method offers a rigorous yet interpretive route to discovering the discourses through which people understand environmental questions. Unlike conventional surveys, which correlate variables across people, Q-method correlates people across statements, so the emergent factors are clusters of subjects who share a way of seeing the issue. Each factor represents an environmental discourse — a coherent perspective on, say, climate policy, conservation, or sustainability — defined by how its adherents prioritize the statements. The method blends the qualitative richness of discourse analysis with the analytic discipline of factor analysis, making it a favored tool for mapping the contested perspectives that animate environmental debate.	The Delphi method is a structured technique for aggregating expert judgment about uncertain or future-oriented questions through several rounds of anonymous, individually completed surveys with controlled feedback between rounds. As distilled in Rowe and Wright's 1999 analysis, its defining features are anonymity, iteration, controlled feedback of the group's responses, and statistical summary of the panel's collective view. Applied to environmental foresight, Delphi is used to elicit and synthesize expert opinion on questions where hard data are sparse or absent — the timing of ecological thresholds, the plausibility of emerging risks, the priority of research needs, or the likely effectiveness of policy options. By letting experts revise their judgments in light of the anonymized group response, Delphi seeks reasoned convergence while filtering out the social pressures of face-to-face committees.