Of all the ways groups make bad decisions, false consensus is among the most difficult to detect. Bullying others and dismissing the contributions of some group members are usually obvious when they happen, but by contrast, false consensus is subtle. Even those most affected by it might be unaware.
Harry Morgan and Henry Fonda in The Ox-Bow Incident, a 1943 film directed by William Wellman, starring Fonda and Dana Andrews. The film is based on the novel by Walter Van Tilburg Clark. It tells the story of a lynching in Nevada in 1885, in which an illegally deputized posse of 27 men and one woman hangs three innocent men. At one point in the proceedings, to confirm the posse's nerve, the ringleader calls for a majority vote, asking anyone who favors a court trial to "stand over there." One by one, seven men comply, and although they are overwhelmingly outvoted, we cannot help but feel the shock of the members of the pro-lynching faction as they discover an increasing number of dissenters in their midst. One of the dissenters is the ringleader's son.
This scene illustrates the two components of false consensus. First, it shows the disruptive effects of discovering that anyone would disagree with one's own position. Second, it shows how those who hold the conventional view tend to regard dissenters as defective. Photo courtesy U.S. Library of Congress.
False consensus is a group psychological phenomenon [Ross 1977] [Engelmann 2004] with two components. First, members tend to believe incorrectly that others hold opinions in agreement with their own. Second, members tend to believe that those who disagree do so because of personal defects.
This error of perception is not a personal flaw — it is a universal human trait. Wherever people work in groups or teams, false consensus can happen, more often than any of us would like.
Usually, the errors in estimating what others believe are inconsequential, but when the issue is controversial, errors matter. For instance, when a team chooses between two different strategies, members tend to guess that other members would choose as they would. And they also tend to believe that those who make the opposite choice have serious character flaws or malicious intent.
Here are four situations that present elevated risk of false consensus.
- Contracts
- Contracts usually contain specifically crafted language and terminology, which is inevitably subject to interpretation. Each party to the contract interprets this language in ways that seem to them to be conventional or common sense. And that's where false consensus can arise.
- By including examples and not-examples in contracts, we can reduce the likelihood of false consensus by narrowing the range of ambiguity.
- Requirements
- False consensus can arise in both requirements development and requirements interpretation. Any ambiguity will find people willing to adopt differing interpretations, with many believing that their interpretations are conventional, and that other interpretations are self-serving or perhaps malevolent.
- Terseness, though seemingly elegant, creates risk of false consensus. Specificity, with examples and not-examples, produces better outcomes.
- Organizational agreements
- Agreements Terseness, though seemingly
elegant, creates risk of
false consensusof any kind are fertile ground for false consensus. "We'll postpone that task if you let him work on this task now," is an example. Its ambiguity creates opportunities for false consensus. Postpone for how long? Will he be working full time now? - Make agreements explicit and specific. Write them down in confirming email messages or posts.
- Organizational change
- In organizational change efforts, Management often desires that the Managed accept something the Managed don't actually want. Sometimes, Management encourages false consensus by creating the impression that the majority do actually want the change. It's a tempting tactic, but when people eventually figure out what's happening, trust is broken and Management loses credibility.
- A safer approach: be honest and deal with serious objections seriously.
We probably all share a false consensus about false consensus: it doesn't happen to me or to anyone I know, and those who do fall victim to it are idiots. 
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Are you fed up with tense, explosive meetings? Are you or a colleague the target of a bully? Destructive conflict can ruin organizations. But if we believe that all conflict is destructive, and that we can somehow eliminate conflict, or that conflict is an enemy of productivity, then we're in conflict with Conflict itself. Read 101 Tips for Managing Conflict to learn how to make peace with conflict and make it an organizational asset. Order Now!
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Related articles
More articles on Conflict Management:
Practice Positive Politics- Politics is a dirty word at work, as elsewhere. We think of it as purely destructive, often distorting
decisions and leading the organization in wrong directions. And sometimes, it does. Politics can be
constructive, though, and you can help to make it so.
What Insubordinate Nonsubordinates Want: III- When you're responsible for an organizational function, and someone not reporting to you doesn't comply
with policies you rightfully established, trouble looms. What role do supervisors play?
Overtalking: II- Overtalking is a tactic for dominating a conversation by talking to stop others from talking. When it
happens, what can we do about it?
When Somebody Throws a Nutty- To "throw a nutty" — at work, that is — can include anything from extreme verbal
over-reaction to violent physical abuse of others. When someone exhibits behavior at the milder end
of this spectrum, what responses are appropriate?
Compulsive Talkers at Work: Addiction- Incessant, unending talking about things that the listener doesn't care about, already knows about,
or can do nothing about is an irritating behavior that harms both talker and listener. What can we do
about this?
See also Conflict Management and Workplace Politics for more related articles.
Forthcoming issues of Point Lookout
Coming November 30: Avoiding Speed Bumps: II- Many of the difficulties we encounter when working together don't create long-term harm, but they do cause delays, confusion, and frustration. Here's Part II of a little catalog of tactics for avoiding speed bumps. Available here and by RSS on November 30.
And on December 7: Reaching Agreements in Technological Contexts- Reaching consensus in technological contexts presents special challenges. Problems can arise from interactions between the technological elements of the issue at hand, and the social dynamics of the group addressing that issue. Here are three examples. Available here and by RSS on December 7.
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My blog, Technical Debt for Policymakers, offers
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- Check my own links collection
- LinkedIn's Office Politics discussion group
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