Ginny was getting pretty steamed. "We tried code inspections back in Release 5, and you know what happened then. Everything slowed down, we got nothing done, everyone got into fights, and Morgan left the group. If we have to do inspections, you can count me out." Ginny's argument, in essence, was that since some unpleasant events happened shortly after inspections began, the code inspections caused them.
Arguments based on the
Fallacy of the False Cause
to make costly errorsAlthough her argument is convincing to many, it doesn't prove her case. It's an example of a rhetorical fallacy called post hoc ergo propter hoc — Latin for "after this, therefore because of this." Ginny argues that since the unpleasant events followed the adoption of code inspections, the code inspections caused the problems, and therefore all code inspections, of any kind whatever, are bad.
The Post Hoc fallacy is a special case of a more general type of fallacy — the fallacy of the false cause. In Post Hoc, the apparent causal connection relates to the timing of the two events. But connections can also be unrelated to timing:
All of the projects Gerhard has managed in the past few years have been late and over budget. Since people now believe that Gerhard was the cause of the overruns, he can no longer get assignments as a project lead. Nobody seems to remember that each of Gerhard's project sponsors had either reduced his budget or expanded requirements so many times that no project manager would have had much of a chance to perform well.
Gerhard's management skill was the most obvious factor common to the failed projects, but it wasn't the cause. In this case, faulty reasoning damages a career and deprives the company of a skilled manager.
How can you spot this kind of error in the heat of debate? The fallacy of the false cause might be lurking if the argument states that:
Since A was present when B occurred, then A was the cause. Or Since A preceded B, A caused B.
To respond to arguments that use this fallacy, use examples in which A was present, but B wasn't. Your debate partner might not be convinced, but it's your best shot.
Educate your colleagues about the Fallacy of the False Cause. When we understand how much it can cost, and when we understand how to avoid it, we can save much pain and frustration. Perhaps Will Rogers said it best (though the thought has been attributed to many others as well):
It's not what we don't know that hurts; it's what we know that ain't so.
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More articles on Emotions at Work:
- The Tweaking CC
- When did you last receive an email message with a "tweaking CC"? Probably yesterday. A tweaking
CC is usually a CC to your boss or possibly the entire known universe, designed to create pressure by
exposing embarrassing information.
- Begging the Question
- Begging the question is a common, usually undetected, rhetorical fallacy. It leads to unsupported conclusions
and painful places we just can't live with. What can we do when it happens?
- The Injured Teammate: II
- You're a team lead, and one of the team members is suddenly very ill or has been severely injured. How
do you handle it? Here are some suggestions for breaking the news to the team.
- Human Limitations and Meeting Agendas
- Recent research has discovered a class of human limitations that constrain our ability to exert self-control
and to make wise decisions. Accounting for these effects when we construct agendas can make meetings
more productive and save us from ourselves.
- Unanswerable Questions
- Some questions are beyond our power to answer, but many of us try anyway. What are some of these unanswerable
questions and how can we respond?
Forthcoming issues of Point Lookout
- Coming April 1: Incompetence: Traps and Snares
- Sometimes people judge as incompetent colleagues who are unprepared to carry out their responsibilities. Some of these "incompetents" are trapped or ensnared in incompetence, unable to acquire the ability to do their jobs. Available here and by RSS on April 1.
- And on April 8: Intentionally Misreporting Status: I
- When we report the status of the work we do, we sometimes confront the temptation to embellish the good news or soften the bad news. How can we best deal with these obstacles to reporting status with integrity? Available here and by RSS on April 8.
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- The Power Affect: How We Express Our Personal Power
Many people who possess real organizational power have a characteristic demeanor. It's the way they project their presence. I call this the power affect. Some people — call them power pretenders — adopt the power affect well before they attain significant organizational power. Unfortunately for their colleagues, and for their organizations, power pretenders can attain organizational power out of proportion to their merit or abilities. Understanding the power affect is therefore important for anyone who aims to attain power, or anyone who works with power pretenders. Read more about this program.
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