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:
- Good Change, Bad Change: II
- When we distinguish good change from bad, we often get it wrong: we favor things that would harm us,
and shun things that would help. When we do get it wrong, we're sometimes misled by social factors.
- Confirmation Bias: Workplace Consequences Part II
- We continue our exploration of confirmation bias. In this Part II, we explore its effects in management
- Preventing Toxic Conflict: I
- Conflict resolution skills are certainly useful. Even more advantageous are toxic conflict prevention
skills, and skills that keep constructive conflict from turning toxic.
- Patterns of Conflict Escalation: I
- Toxic workplace conflicts often begin as simple disagreements. Many then evolve into intensely toxic
conflict following recognizable patterns.
- Make Suggestions Privately
- Suggesting a better way of doing things can sometimes backfire surprisingly and intensely. Making suggestions
privately reduces that risk, but introduces a different risk.
Forthcoming issues of Point Lookout
- Coming December 18: The Trap of Beautiful Language
- As we assess the validity of others' statements, we risk making a characteristically human error — we confuse the beauty of their language with the reliability of its meaning. We're easily thrown off by alliteration, anaphora, epistrophe, and chiasmus. Available here and by RSS on December 18.
- And on December 25: Disjoint Awareness
- In collaborations, awareness of how our own work might interfere with the work of others is essential. Unless our awareness of others' work — and their awareness of ours — matches reality, the collaboration's objective is at risk. Available here and by RSS on December 25.
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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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