Logical Fallacies Flashcards
Hasty generalization
A conclusion or judgement made from insufficient evidence. When one piece of evidence or information is used to make a broad conclusion or statement.
Cherry picking
Picking and choosing only some of the available evidence in order to present only points most favorable o your point of view. Knowingly choosing favorable information and ignoring unfavorable information; the argument is not supported by available research.
Straw man
An oversimplification of an opposing perspective so that it becomes easy to attack. Inaccurately represents the opposing argument, thus one is not actually addressing the argument. Setting up counterarguments as weak so they can easily be rejected.
Red herring
Changing topics in order to avoid the point being discussed. Introducing a false or irrelevant claim in order to distract readers from the main argument. A way to avoid a question.
Ad hominem
Latin for “against the man.” Making a personal attack rather than engaging with someone’s ideas.
Ad populum
Making an argument solely on the perceived shared beliefs of a group. Misused ethos - the author references the values that the audience cares about so they think only about the values and not about the content of the argument.
False dilemma / False dichotomy / Either-or
This is an argument that attempts to create a situation of absolutes with no options in between. Either we intervene or we are basically no better than the Nazis.” Assumes that there are only two options and nothing in between.
Slippery slope
This is a fallacy that assumes that one thing is going to have a series of consequences or effects-often leading to a worst case scenario. False because: 1.) it’s impossible to predict the future absolutely, 2.) it is illogical to suggest that one action will always necessarily lead to the worst possible outcome, 3.) it assumes a very specific chain of future events.
Bandwagon
This is a fallacy that assumes that one will follow the crowd, sort of by peer pressure. Assumes that the reader will only follow the crowd and abandon free thought.
False authority
Attempts to use the credentials of one to support another claim even when those credentials are not valid for the argument at hand.
Dogmatism
Relies on the assumption that the truth is self-evident and needs no further explanation.
Stacking the deck
Used when only one line of reasoning or evidence is used to support a claim or argument. Ignores oppositional reasoning or counter-evidence.
Post hoc, ergo propter hoc
Latin for “after this, therefor because of this.” Someone makes a claim that one event caused another, when it is instead a correlation.
Begging the question
Speaker assumes that the conclusion of their argument is valid without proving lines of reasoning. Many times this is just a repetitious restatement of the conclusion, and becomes a circular argument.
Equivocation
Relies on the ambiguous use of a key term in an argument thereby misleading the reader/listener.