2.4 Quiz Critical Thinking by Example


1. “People are always talking about “the best pet”. It is funny that there should be so much discussion about a topic that is so obvious. Dogs are humanity’s best friend because you can take them for a walk. And most dogs are excited to see their owners.”
The claim “Most dogs are excited to see their owners” is best described as the main conclusion.


a) True
b) False
2. “People are always talking about “the best pet”. It is funny that there should be so much discussion about a topic that is so obvious. Dogs are humanity’s best friend because you can take them for a walk. And most dogs are excited to see their owners.”
The best evaluation of this argument is

a) it is a good argument.
b) it commits the fallacy of irrelevant reason.
c) it commits the fallacy of hasty conclusion.
d) it commits the fallacy of problematic premise.
3. “Don’t be silly. Cats are humanity’s best friend because you don’t have to take them for a walk. And most cats make a soothing purring sound.” The claim “You don’t have to take them for a walk" is a subpremise.

a) True
b) False
4. “Don’t be silly. Cats are humanity’s best friend because you don’t have to take them for a walk. And most cats make a soothing purring sound.” The best evaluation of this argument is

a) it is a good argument.
b) it commits the fallacy of irrelevant reason.
c) it commits the fallacy of hasty conclusion.
d) it commits the fallacy of problematic premise.
5. "Some cultures permit, if not encourage, people to eat dogs. This is a morally abhorrent practice. It is always wrong to eat your best friend, and dogs are our best friends."

The claim: “Some cultures permit, if not encourage, people to eat dogs” is the main conclusion.

a) True.
b) False
6. "Some cultures permit, if not encourage, people to eat dogs. This is a morally abhorrent practice. It is always wrong to eat your best friend, and dogs are our best friends."

The best evaluation of this argument is

a) it is a good argument.
b) it commits the fallacy of irrelevant reason.
c) it commits the fallacy of hasty conclusion.
d) it commits the fallacy of problematic premise.
7. The expression “dogs are humanity’s best friend” refers to the relationship between two species: humans and dogs. It does not mean that for most humans a dog is their best friend. Saying “dogs are humanity’s best friend” is quite consistent with saying that the best friend of some humans is another human, not a dog.”

The following sentence is the main conclusion: “Saying “dogs are humanity’s best friend” is quite consistent with saying that the best friend of some humans is another human, not a dog.”

a) True.
b) False
8. The expression “dogs are humanity’s best friend” refers to the relationship between two species: humans and dogs. It does not mean that for most humans a dog is their best friend. Saying “dogs are humanity’s best friend” is quite consistent with saying that the best friend of some humans is another human, not a dog.” The best evaluation of this argument is

a) it is a good argument.
b) it commits the fallacy of irrelevant reason.
c) it commits the fallacy of hasty conclusion.
d) it commits the fallacy of problematic premise.
9. "Some people believe that cats are great pets. But once you eliminate gays, lesbians and liberals you realize that no one can seriously believe this." [Note: the argument is offensive. I have included it because we live in a world where some people make offensive arguments, and it is good practice to be able to say exactly what is wrong with this sort of reasoning. ]

The following claim is the main conclusion: No one can seriously believe cats are great pets.

a) True.
b) False.
10. "Some people believe that cats are great pets. But once you eliminate gays, lesbians and liberals you realize that no one can seriously believe this."

The best evaluation of this argument is

a) it is a good argument.
b) it commits the fallacy of irrelevant reason.
c) it commits the fallacy of hasty conclusion.
d) it commits the fallacy of problematic premise.
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