9.1 Quiz Critical Thinking by Example


1. Background: The following is a group debate made in a philosophy class in a U.S. university.
“[1] Marijuana should be legal and sold much like alcohol is now sold in stores. [2] A recent survey revealed that 68% of all adults in the U.S. have tried marijuana at least once. [3] Another survey showed that 72% of all high school students have tried pot at least once. [4] It is used all the time on campus, for example [5] we saw (and smelt) some people smoking pot outside the library when we met to write this paper. [6] We live in a democracy. [7] The laws of a democracy are supposed to reflect the will of the majority. [8] Thus, if the majority of people will to do something, that activity should be legal. [9] Pot smokers of the world unite: you have nothing to lose but your chains.” The claim marked [1]

a) is an acceptable bottom level premise based on experience.
b) is an acceptable bottom level premise based on common knowledge.
c) is an acceptable bottom level premise based on an epistemic authority.
d) is not a bottom level premise.
e) is an unacceptable bottom level premise.
2. Background: The following is a group debate made in a philosophy class in a U.S. university. “[1] Marijuana should be legal and sold much like alcohol is now sold in stores. [2] A recent survey revealed that 68% of all adults in the U.S. have tried marijuana at least once. [3] Another survey showed that 72% of all high school students have tried pot at least once. [4] It is used all the time on campus, for example [5] we saw (and smelt) some people smoking pot outside the library when we met to write this paper. [6] We live in a democracy. [7] The laws of a democracy are supposed to reflect the will of the majority. [8] Thus, if the majority of people will to do something, that activity should be legal. [9] Pot smokers of the world unite: you have nothing to lose but your chains.” The claim marked [2]

a) is an acceptable bottom level premise based on experience.
b) is an acceptable bottom level premise based on common knowledge.
c) is an acceptable bottom level premise based on an epistemic authority.
d) is not a bottom level premise.
e) is an unacceptable bottom level premise.
3. Background: The following is a group debate made in a philosophy class in a U.S. university. “[1] Marijuana should be legal and sold much like alcohol is now sold in stores. [2] A recent survey revealed that 68% of all adults in the U.S. have tried marijuana at least once. [3] Another survey showed that 72% of all high school students have tried pot at least once. [4] It is used all the time on campus, for example [5] we saw (and smelt) some people smoking pot outside the library when we met to write this paper. [6] We live in a democracy. [7] The laws of a democracy are supposed to reflect the will of the majority. [8] Thus, if the majority of people will to do something, that activity should be legal. [9] Pot smokers of the world unite: you have nothing to lose but your chains.” The claim marked [3]

a) is an acceptable bottom level premise based on experience.
b) is an acceptable bottom level premise based on common knowledge.
c) is an acceptable bottom level premise based on an epistemic authority.
d) is not a bottom level premise.
e) is an unacceptable bottom level premise.
4. Background: The following is a group debate made in a philosophy class in a U.S. university. “[1] Marijuana should be legal and sold much like alcohol is now sold in stores. [2] A recent survey revealed that 68% of all adults in the U.S. have tried marijuana at least once. [3] Another survey showed that 72% of all high school students have tried pot at least once. [4] It is used all the time on campus, for example [5] we saw (and smelt) some people smoking pot outside the library when we met to write this paper. [6] We live in a democracy. [7] The laws of a democracy are supposed to reflect the will of the majority. [8] Thus, if the majority of people will to do something, that activity should be legal. [9] Pot smokers of the world unite: you have nothing to lose but your chains.” The claim marked [4]

a) is an acceptable bottom level premise based on experience.
b) is an acceptable bottom level premise based on common knowledge.
c) is an acceptable bottom level premise based on an epistemic authority.
d) is not a bottom level premise.
e) is an unacceptable bottom level premise.
5. Background: The following is a group debate made in a philosophy class in a U.S. university. “[1] Marijuana should be legal and sold much like alcohol is now sold in stores. [2] A recent survey revealed that 68% of all adults in the U.S. have tried marijuana at least once. [3] Another survey showed that 72% of all high school students have tried pot at least once. [4] It is used all the time on campus, for example [5] we saw (and smelt) some people smoking pot outside the library when we met to write this paper. [6] We live in a democracy. [7] The laws of a democracy are supposed to reflect the will of the majority. [8] Thus, if the majority of people will to do something, that activity should be legal. [9] Pot smokers of the world unite: you have nothing to lose but your chains.” The claim marked [5]

a) is an acceptable bottom level premise based on experience.
b) is an acceptable bottom level premise based on common knowledge.
c) is an acceptable bottom level premise based on an epistemic authority.
d) is not a bottom level premise.
e) is an unacceptable bottom level premise.
6. Background: The following is a group debate made in a philosophy class in a U.S. university. “[1] Marijuana should be legal and sold much like alcohol is now sold in stores. [2] A recent survey revealed that 68% of all adults in the U.S. have tried marijuana at least once. [3] Another survey showed that 72% of all high school students have tried pot at least once. [4] It is used all the time on campus, for example [5] we saw (and smelt) some people smoking pot outside the library when we met to write this paper. [6] We live in a democracy. [7] The laws of a democracy are supposed to reflect the will of the majority. [8] Thus, if the majority of people will to do something, that activity should be legal. [9] Pot smokers of the world unite: you have nothing to lose but your chains.” The claim marked [6]

a) is an acceptable bottom level premise based on experience.
b) is an acceptable bottom level premise based on common knowledge.
c) is an acceptable bottom level premise based on an epistemic authority.
d) is not a bottom level premise.
e) is an unacceptable bottom level premise.
7. Background: The following is a group debate made in a philosophy class in a U.S. university. “[1] Marijuana should be legal and sold much like alcohol is now sold in stores. [2] A recent survey revealed that 68% of all adults in the U.S. have tried marijuana at least once. [3] Another survey showed that 72% of all high school students have tried pot at least once. [4] It is used all the time on campus, for example [5] we saw (and smelt) some people smoking pot outside the library when we met to write this paper. [6] We live in a democracy. [7] The laws of a democracy are supposed to reflect the will of the majority. [8] Thus, if the majority of people will to do something, that activity should be legal. [9] Pot smokers of the world unite: you have nothing to lose but your chains.” The claim marked [7]

a) is an acceptable bottom level premise based on experience.
b) is an acceptable bottom level premise based on common knowledge.
c) is an acceptable bottom level premise based on an epistemic authority.
d) is not a bottom level premise.
e) is an unacceptable bottom level premise.
8. Background: The following is a group debate made in a philosophy class in a U.S. university. “[1] Marijuana should be legal and sold much like alcohol is now sold in stores. [2] A recent survey revealed that 68% of all adults in the U.S. have tried marijuana at least once. [3] Another survey showed that 72% of all high school students have tried pot at least once. [4] It is used all the time on campus, for example [5] we saw (and smelt) some people smoking pot outside the library when we met to write this paper. [6] We live in a democracy. [7] The laws of a democracy are supposed to reflect the will of the majority. [8] Thus, if the majority of people will to do something, that activity should be legal. [9] Pot smokers of the world unite: you have nothing to lose but your chains.” The claim marked [8]

a) is an acceptable bottom level premise based on experience.
b) is an acceptable bottom level premise based on common knowledge.
c) is an acceptable bottom level premise based on an epistemic authority.
d) is not a bottom level premise.
e) is an unacceptable bottom level premise.
9. Background: The following is a group debate made in a philosophy class in a U.S. university. “[1] Marijuana should be legal and sold much like alcohol is now sold in stores. [2] A recent survey revealed that 68% of all adults in the U.S. have tried marijuana at least once. [3] Another survey showed that 72% of all high school students have tried pot at least once. [4] It is used all the time on campus, for example [5] we saw (and smelt) some people smoking pot outside the library when we met to write this paper. [6] We live in a democracy. [7] The laws of a democracy are supposed to reflect the will of the majority. [8] Thus, if the majority of people will to do something, that activity should be legal. [9] Pot smokers of the world unite: you have nothing to lose but your chains.” The claim marked [9]

a) is an acceptable bottom level premise based on experience.
b) is an acceptable bottom level premise based on common knowledge.
c) is an acceptable bottom level premise based on an epistemic authority.
d) is not a bottom level premise.
e) is an unacceptable bottom level premise.
10. Background: The following is a group debate made in a philosophy class in a U.S. university. “[1] Marijuana should be legal and sold much like alcohol is now sold in stores. [2] A recent survey revealed that 68% of all adults in the U.S. have tried marijuana at least once. [3] Another survey showed that 72% of all high school students have tried pot at least once. [4] It is used all the time on campus, for example [5] we saw (and smelt) some people smoking pot outside the library when we met to write this paper. [6] We live in a democracy. [7] The laws of a democracy are supposed to reflect the will of the majority. [8] Thus, if the majority of people will to do something, that activity should be legal. [9] Pot smokers of the world unite: you have nothing to lose but your chains.” The best evaluation of the relationship between [7] and [8] is

a) There is no logical relationship between 7 and 8.
b) 7 is offered in support of 8.
c) 7 and 8 are vague because they do not say what percentage makes for a majority.
d) There is an equivocation in what it is to will. In 7 it means that laws should be based on what laws voters would like to see legislated. In 8 will means simply the intention to do something. We may choose (will) to speed, but not think that voting (willing) for higher speed limits is a good idea.
e) Both b and d.
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