Fallacies Flashcards
Illogical statements that sound reasonable or true but are actually deceptive and dishonest
Fallacies
This fallacy assumes that a statement is true when it actually requires proof.
Begging the question
The most basic instances of begging the question involve rephrasing. It estates the initial proposition in different ways.
Circular logic
This fallacy occurs when a conclusion is reached on the basis of too little evidence
Jumping to a conclusion (sweeping generalization)
This fallacy assumes that because two events occur close together in time, the first must be the cause of the second
Post hoc, ergo propter hoc (post hoc)
This fallacy occurs when statistics are collected from a sample that is too small
Misleading statistics
This fallacy occurs when the meaning of a key terms changes at some point of an argument.
Equivocation
This fallacy occurs when a writer suggests that only two alternatives exist even though there may be others.
False dilemma (either/or fallacy)
This fallacy occurs when a statement does not logically follow from a previous statement.
Non sequitur (It does not follow)
In this fallacy there is an analogy that ignores important differences between the two things
Argument from analogy
In this fallacy the person cited is not an authority on the subject
Appeal doubtful authority
This fallacy tries to divert attention from the facts of an argument by attacking the motive or character of the person making the argument
Personal attack (argument ad hominem)
This fallacy asserts that an opponents argument has no value because the opponent does not follow his or her own advice
You also (Tu quoque)
This fallacy occurs when the focus of an argument is shifted to divert the audience from the actual issue
Red herring
Unfair and shortsighted policies that limit free-trade are a threat to the American economy. Is an example of what fallacy?
Begging the question
The reason everyone wants the new Elmo doll is because it is the hottest toy of the season! Is an example of which fallacy?
Circular logic
Because our son benefited from homeschooling, every school should be educated in this way. Is an example of which fallacy?
Jumping to conclusions
Every time a Republican is elected president, recession follows. If we want to avoid another recession, we should elect a Democrat. Is an example of which fallacy?
Post hoc, ergo propter hoc (after this, therefore because of this)
Women will never be competent firefighters; after all, 50% of the women in the city’s training program failed the exam. Is an example of which fallacy?
Misleading statistic
As a human endeavor, computers are a praiseworthy and even remarkable accomplishment. But how human can we hope to be if we rely on computers to make a decision? Is an example of which fallacy?
Equivocation
We must choose between life and death, between intervention and genocide. No one can be neutral on this issue. Is an example of what fallacy?
False dilemma (either/or fallacy)
Disarmament weakened the United States after World War I. Disarmament also weakened United States after the Vietnam war. For this reason, the city’s effort to make gun sales weaken the United States. Is an example of what fallacy?
Non sequitur (it does not follow)
Overcrowded conditions in some parts of our city have force people together like rats in a cage. Like rats, they will eventually turn on one another, fighting and killing until a balance is restored. It is therefore necessary that we vote to appropriate funds to build low-cost housing. Is an example of what fallacy?
Argument from analogy
The public should not take seriously Dr. Mason’s plan for improving county health services. He’s overweight and a smoker. Is an example of what fallacy?
Personal attack (argument ad hominem)
How can that judge favor stronger penalties for convicted drug dealers? During his confirmation hearings, he admitted smoking marijuana when he was in college. Is an example of what fallacy?
You also (Tu Quoque)
The mayor has proposed building a new sports stadium. How can he even considered allocating millions of dollars to this scheme when so many professional athletes are being paid such high salaries? Is an example of what fallacy?
Red herring