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Rhetorical Fallacies

Here are links to the previous issues of Point Lookout that touch on Rhetorical Fallacies. Bookmark this page. Or browse this archive by date. Subscribe now.

A portrait of Matthew Lyon, printer, farmer, soldier, politicianComing February 8: How to Foresee the Foreseeable: Recognize Haste
When trouble arises after we commit to a course of action, we sometimes feel that the trouble was foreseeable. One technique for foreseeing the foreseeable depends on recognizing haste in the decision-making process. Available here and by RSS on February 8.

Roger Boisjoly of Morton Thiokol, who tried to halt the launch of Challenger in 1986And on February 15: How to Foresee the Foreseeable: Focus on the Question
When group decisions go awry, we sometimes feel that the failure could have been foreseen. Often, the cause of the failure was foreseen, but because the seer was a dissenter within the group, the issue was set aside. Improving how groups deal with dissent can enhance decision quality. Available here and by RSS on February 15.

Other topics:

September 28, 2011

Perceptual illusions resulting from reificationThe Reification Error and Performance Management
Just as real concrete objects have attributes, so do abstract concepts, or constructs. But attempting to measure the attributes of constructs as if they were the attributes of real objects is an example of the reification error. In performance management, committing this error leads to unexpected and unwanted results.

May 13, 2009

The mushroom cloud from the Grable test of 1953Misleading Vividness
Group decision-making usually entails discussion. When contributions to that discussion include vivid examples, illustrations, or stories, the group can be at risk of making a mistaken decision.

March 4, 2009

Old River Control StructureThe Fallacy of Composition
Rhetorical fallacies are errors of reasoning that introduce flaws in the logic of arguments. Used either intentionally or by accident, they often lead us to mistaken conclusions. The Fallacy of Composition is one of the more subtle fallacies, which makes it especially dangerous.

September 15, 2004

Circular reasoningBegging 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?

July 7, 2004

Two dinosaurs fightingBelieve It or Else
When we use threats and intimidation to win debates or agreement, we lay a flimsy foundation for future action. Using fear may win the point, but little more.

April 14, 2004

Two dinosaurs fightingMudfights
When we steer the discussion away from issues to attack the credibility, motives or character of our debate partners, we often resort to a technique known as the ad hominem attack. It's unfair, it's unethical, and it leads to bad, expensive decisions that we'll probably regret.

February 11, 2004

A straw manDecision-Making and the Straw Man
In project work, we often make decisions with incomplete information. Sometimes we narrow the options to a few, examine their strengths and risks, and make a choice. In our deliberations, some advocates use a technique called the Straw Man fallacy. It threatens the soundness of the decision, and its use is very common.

June 26, 2002

A sunsetThink in Living Color
Feeling trapped, with no clear way out, often leads to anger. One way to defuse your anger is to notice false traps, particularly the false dichotomy. When you notice that you're the target of a false dichotomy, you can control your anger more easily — and then the trap often disappears.

July 11, 2001

Good news/bad newsThe Fallacy of the False Cause
Although we sometimes make decisions with incomplete information, we do the best we can, given what we know. Sometimes, we make wrong decisions not because we have incomplete information, but because we make mistakes in how we reason about the information we do have.

March 28, 2001

Capitol Hill at nightThe Slippery Slope That Isn't
"If we promote you, we'll have to promote all of them, too." This "slippery-slope" tactic for winning debates works by exploiting our fears. Another in a series about rhetorical tricks that push our buttons.

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