Thinking in Bets: Making Smarter Decisions When You Don't Have All the Facts · chapter 5 · id thinking-in-bets-c5-01-authentic-dissent-genuine-disa

“Authentic dissent (genuine disagreement) is far more effective at improving group decisions than assigned devil's advocacy (role-played disagreement).”

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Nemeth, Brown & Rogers (2001), 'Devil's advocate versus authentic dissent,' European Journal of Social PsychologyDOI registry: valid

Devil's advocate appeared to foster thinking that was primarily aimed at cognitive bolstering of the initial viewpoint rather than stimulate divergent thought. Authentic minority dissent stimulated significantly more original thoughts and greater consideration of opposing positio

Behavioral Scientist, 'Stop Playing Devil's Advocate and Other Advice for Better Decision Making'source alive

Assigned dissent is less effective than authentic disagreement. When people know the dissenter doesn't really believe what they're saying, the group treats it as a game rather than a genuine challenge to their thinking.

This claim is a stable, citable object. If you can falsify a verdict, tell us — corrections are loud here.