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WorksheetsN5 Fallacies and Validity
Total questions: 30
Worksheet time: 18mins
Senator Ribbit is a liar. You shouldn't listen to him on anything.
Slippery slope
ad hominem
appeal to illegitimate authority
false dilemma
My uncle is a mechanic and he says you shouldn't spank children. He says it's ineffective.
illegitimate authority
slippery slope
ad hominem
alse dilemma
If we let the government implant tracking devices in criminals, it's not going to stop there! They're going to want to track school children and eventually everyone!
false dilemma
slippery slope
illegitimate appeal to authority
ad hominem
There's no point listening to you. Everybody knows you're just a little do-gooder.
ad hominem
illegitimate appeal to authority
false dilemma
slippery slope
I think scientists are wrong. There is no such thing as global warming. I just finished talking to my boss, and he thought the idea was ridiculous.
ad hominem
slippery slope
appeal to illegitimate authority
false dilemma
If you're going to add that much salt to the soup, you might as well pour the whole box in!
slippery slope
ad hominem
false dilemma
appeal to illegitimate authority
You can buy the new Sensitivity perfume, or you can smell bad all day.
faulty analogy
either/or
hasty generalization
non sequitur
I don't think we need to talk to the people in the Justice Department about the practicality of enforcing this bill. The Justice Department is full of Democrats, and they are already biased against it.
ad hominem
fale dilemma
slippery slope
illegitimate appeal to authority
My opponent raises a good point, but can we really trust him? I mean, he moved to this town only two years ago and everyone knows that his wife left him
ad hominem
fale dilemma
slippery slope
illegitimate appeal to authority
Oh, please. What would you know about labor laws? You don’t even have a job.
ad hominem
fale dilemma
slippery slope
illegitimate appeal to authority
If I don’t take this A.P. class, then I won’t do well on the exam. If I don’t do well on the A.P. exam, then I can’t get into a good college. If I can’t get into a good college, then I’ll never get a good job. If I can’t get a good job, then I’m going to have to live in my parents’ basement forever. Guess I’ll sign up for the A.P. class
ad hominem
fale dilemma
slippery slope
illegitimate appeal to authority
You need to go to the party with me, otherwise you’ll just be bored at home.
ad hominem
false dilemma
slippery slope
illegitimate appeal to authority
What is a logical fallacy?
An argument with a premise and a conclusion
An argument that contains a non-statement
An argument that contains mistake in reasoning
Sorry sir, please slap me
Teacher: If I let you go to the bathroom pretty soon everybody will want to go to the bathroom.
This is an example of ......
ad hominem
false dilemma
slippery slope
illegitimate appeal to authority
“How can you argue your case for vegetarianism when you are enjoying your steak?”
Appeal to Illegitimate Authority
slippery slope
false dilemma
Ad Hominem
You should never gamble. Once you start gambling you find it hard to stop. Soon you are spending all your money on gambling, and eventually you will turn to crime to support your earnings.
Appeal to Illegitimate Authority
slippery slope
false dilemma
Ad Hominem
I saw Ashton Kutcher in a prescription drug commercial, therefore it has to be an effective drug.
Appeal to Illegitimate Authority
slippery slope
false dilemma
Ad Hominem
An argument based on a personal attack on someone's character.
Appeal to Illegitimate Authority
slippery slope
false dilemma
Ad Hominem
Which of these are valid structures of argument?
Affirming the consequent
Denying the antecedent
Denying the consequent
Affirming the antecedent
Is this argument valid?
P1:All Daves are male
P2:All Johns are Daves
C:Therefore all Johns are male.
Yes (deductive valid argument)
No (Inductive argument)
Yes (Deductive Denying the consequent)
No (Deductive formal fallacy)
What is a fallacy?
What makes an argument work.
A flaw in the structure or content of an argument.
Valid arguments
An ice-cream flavour
What is the slippery slope fallacy?
An argument that is based on a minor action and which has increasingly major consequences
Where they attack the person not their argument.
Where two choices are presented but there are a range
Where a conclusion is based on the fact that someone who is not an authority in the matter said.
What is the ad hominem Fallacy
An argument that is based on a minor action and which has increasingly major consequences
Where they attack the person not their argument.
Where two choices are presented but there are a range
Where a conclusion is based on the fact that someone who is not an authority in the matter said.
What is the false dilemma Fallacy.
An argument that is based on a minor action and which has increasingly major consequences
Where they attack the person not their argument.
Where two choices are presented but there are a range
Where a conclusion is based on the fact that someone who is not an authority in the matter said.
What is the Illegitimate appeal to authority Fallacy.
An argument that is based on a minor action and which has increasingly major consequences
Where they attack the person not their argument.
Where two choices are presented but there are a range
Where a conclusion is based on the fact that someone who is not an authority in the matter said.
What is the difference between formal and informal fallacies?
Formal fallacies are flaws in the structure of an argument whereas informal fallacies are a flaw in the content.
Formal fallacies are flaws in the content of an argument whereas informal fallacies are flaws in the structure.
The use of marijuana for medical purposes should never be allowed. Before long it will be marijuana for anyone who wants it. Then it will be hash, cocaine, and crack. In no time they'll want crystal, ecstasy, and heroine. In the end everyone will be so drugged out they won't be able to see straight.
Appeal to illegitimate authority
ad hominem
false dilemma
Slippery slope
Drink water every day and be healthy, or continue to drink sodas and be unhealthy. Those are the only options.
Appeal to illegitimate authority
ad hominem
false dilemma
Slippery slope
What is an Either/or Fallacy or False Dilemma?
When the speaker presents a claim based on insufficient evidence
When the speaker compares two things with different meanings
When the speaker presents extreme options as the only possible choices
When the speaker attacks the opponent instead of discussing the issue
What is it called when a speaker attacks their opponent instead of arguing the point?
Bandwagon Appeal
Straw Man Fallacy
Ad Hominem Fallacy
Either/ or Fallacy
