Flag on the Argument

Debate Fallacies that should be identified and held to account

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Fallacies in Argumentation

   A fallacy is an assertion that is stated sloppily, or with the intent to sell an idea deceptively.  Some writers resort to fallacies when the writer - out of laziness or an arrogant bias - has not researched the idea well enough.  It is important that citizens understand them so they will learn to recognize faulty or deceptive reasoning. 

   Argument is often complex, and it occurs in many different contexts, some contexts more tolerant than others.  Debaters and persuaders and their audiences need to be able to identify fallacies, but we should be cautious in jumping to conclusions about them.  Rather than thinking of them as errors, we can find and use them to discredit, or to rebut.  We might think of them as barriers to common ground and understanding since they so often shut down rather than encourage productive debate.

   Some of the more prevalent fallacies:

• Either/Or fallacy: This fallacy occurs when a speaker or writer presents the audience with two false choices: "Either this or that."  Not everything in the world is right or wrong, black or white, good or evil, democratic or undemocratic, and so on.  There are, of course, several issues and ideas that do involve precisely two realities--one is either pregnant or one is not. But other times an either/or statement fails to account for all possibilities in a given situation. Those who commit this fallacy fail to account for the complexity of an idea, sometimes purposely, in order to force adherence to an agenda.
• Faulty (or hasty) generalization:  An arguer engages in a faulty generalization when the scope of the evidence is too small, or when evidence is too poor to support the conclusion. Example: Joe travels from London through the U.S.  In his only trip by car through St. Louis, Joe witnesses the aftermath of the worst car wreck - involving several vehicles and injuries - he's seen in his life.  If, upon arriving home, Joe concludes that St. Louis is the most dangerous city in the U.S. in which to drive, he has committed a hasty generalization.  To actually justify such a claim, Joe would probably need to consult reliable recent data on automobile accident rates in U.S. metropolitan areas.
• After this, therefore because of this: This fallacy assumes or asserts that a time relationship is the same as a cause-effect, that the fact that something occurs first means that results in another thing.  One of the most common instances of this fallacy occurs when one complains that a rainstorm occurs because one has just washed one's car.  Similarly, the claim that a sharp sales increase in a brand of computers is due to the buying public's fondness for a company spokesperson on TV may well be an instance of this post hoc, ergo propter hoc fallacy.  Some amount of credible research would be required to determine the veracity of such a claim.
• Begging the question: This occurs when one makes assumptions about an argument’s truthfulness, or when a claim carries an idea that is itself questionable.  For example, the question-assertion, "What has led to the current breakdown in the morals of contemporary society?" This begs two questions:  1. "In what ways, by what standards, have morals 'broken down' in society?" 2. "How do you know; how can you measure and confirm this?"  Some assertions ("Reading and writing improve one's mind.") are self-evident. But others ("Schools are more violent now than ever before.") are not, and they must be proven.
• Argument ad hominem: This phrase means "to the man" and is one of the most common fallacies in public today.  To commit an ad hominem fallacy (or attack) is to criticize someone not on the substance of what he or she says but on the personality of the person who says it.  To attack someone ad hominem is to attack that person's character.  Of course, character can have relevance to an argument, but when such an attack is used to cloud the issue and distract from rational discourse or other evidence, one commits an ad hominem fallacy.  When actors and musicians are criticized for having opinions about social or political issues ("He doesn't know what he's talking about.  After all, he's a singer, not political analyst"), it won't do to simply dismiss their remarks because they are "mere entertainers."  Talk radio and tabloid-style media largely thrive on ad hominem attacks.  Careful thinkers spot and denounce such tactics as invalid and, in some cases, reprehensible.
• Argument ad populum: Meaning "to the people," this fallacy (similar to the ad hominem attack) occurs when one appeals to peoples' irrational fears and prejudices as a way of preventing them from directly facing issues.  So, if someone from China says to another Chinese, "That speaker is full of nonsense.  He is Japanese, after all," he is relying on an attitude, a shared suspicion of a certain group of people. Another way of committing an ad populum fallacy is by employing connotative terms to stir the emotions of a certain group of people.  Words such as "patriotic" and "pro-family" stir emotions for some audiences, while words such as "socialism" and "illegal immigrant" are often used to stir up irrational anger.  People who think for themselves question the use of such words and phrases as ready-made codes about how and what to think. For example, one might argue that patriotism is, of course, a good thing, but that real patriots have an obligation to question authority and to reject the notion of "My country, right or wrong!" as dangerous, totalitarian rubbish. 
• The Red Herring: This strangely-titled fallacy, named after a strong-smelling fish (the scent of which throws hounds off the scent of a trail), occurs when one draws attention away from the main issue in a given case by focusing on a side issue or on something irrelevant.  Accused of deceptive accounting practices, a major accounting firm replied that their practices are the norm in all accounting firms.  This claim may or may not be true, but it is a red herring because it attempts to draw fire away from the accounting firm and toward the larger profession of accountants.  A red herring is a changing of the subject by skilled distraction.
• Non-sequitur: Latin for "it does not follow," a non sequitur is an inference that doesn't follow from the premises.  In a sense, every fallacy is a non sequitur, an attempt to pass off two or more ideas as related though they are in fact not related (e.g., "If we can send a man to the moon, why can't we find a cure for the common cold?").
• The appeal to traditional wisdom justifies something by stating, "We've always done it that way."  
• A strawman fallacy occurs when one changes an opponent's argument, often by focusing on a weakened version of the argument (e.g., "My opponent wants to free serial killers and kidnappers, but I believe in laws that favor the rights of victims").  A straw man is, of course, easier to dissemble than a real man.
• The bandwagon appeal suggests that a great movement is underway and makes the reader feel guilty or foolish if he or she has not become a part of it (e.g., "Over 60% of the city's residents believes he is a doing a satisfactory job as police chief, so your unfavorable opinion of him is discredited.")

Related articles:

• Discovering Intellectual Dishonesty - Part 4/10 (ilookchina.net)
• Logical Fallacies (comppost.wordpress.com)
• Logical Fallacies in a Political Season (mycoignofvantage.wordpress.com)
• LogicalFallacies.docx (princessyvonnechan.wordpress.com)
• Common Logical Fallacies, Illustrated