2.1 Quiz Critical Thinking By Example


1. "Warnings on the sides of cigaratte packages are useless. You know the ones I mean: "smoking causes lung cancer" or "smoking is addictive". I still see lots and lots of people smoking. " The main conclusion is

a) Lots of people still smoke.
b) Smoking is addictive.
c) Smoking causes lung cancer.
d) Both b and c.
e) Warnings on the sides of cigarette packages are useless.
2. "Warnings on the sides of cigarette packages are useless. You know the ones I mean: 'smoking causes lung cancer" or "smoking is addictive". I still see lots of people smoking." 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. "My friend Dawn says that vodka I drink is not healthy for me. But she forgets that I drink screwdrivers: vodka and orange juice. Orange juice is good for you, so clearly she is wrong." The main conclusion of this argument is

a) My friend Dawn says that the vodka I drink is not healthy for me.
b) I drink screwdrivers: vodka and orange juice.
c) Orange juice is good for you.
d) Dawn is wrong that vodka is not healthy for me.
4. "My friend Dawn says that vodka I drink is not healthy for me. But she forgets that I drink screwdrivers: vodka and orange juice. Orange juice is good for you, so clearly she is wrong." 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. "The pot laws must change. The laws in our country are supposed to reflect the will of the people but everyone I have spoken with on campus agrees that the harsh anti-marijuana laws of this country are wrong." The main conclusion is

a) The pot laws must change.
b) Everyone I have spoken to on campus agrees that the harsh anti-marijuana laws of this country are wrong.
c) The laws in our country are supposed to reflect the will of the people.
6. "The pot laws must change. The laws in our country are supposed to reflect the will of the people but everyone I have spoken with on campus agrees that the harsh anti-marijuana laws of this country are wrong." 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. "IIf most people do something, it can't be bad, and 89.95% of all pregnant mothers drink while pregnant, so drinking during pregnancy is not bad." The main conclusion is,

a) Most people do something that is not bad.
b) 89.95% of all pregnant mothers drink.
c) If most people do something, it can't be bad.
d) Drinking during pregnancy is not bad.
8. "If most people do something, it can't be bad, and 89.95% of all pregnant mothers drink while pregnant, so drinking during pregnancy is not bad."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 Hasty Conclusion
d) It commits the fallacy of Problematic Premise.
9. "Some environmentalists argue that the fact that the earth's temperature is rising shows that global warming is caused by human activity. However, this argument is a bad argument because it does not account for other possible causes, e.g., prior to the arrival of humans, periodically the earth's temperature has risen suggesting that natural processes could be involved in the present increase in temperature." The main conclusion of this argument is,

a) Some environmentalist argue that the fact that the earth's temperature is rising shows that global warming is caused by human activity.
b) The environmentalists' argument that the earth's temperature rising shows that globabl warming is caused by human activity is a bad argument.
c) The environmentalists' argument does not account for other possible causes.
d) The earth's temperature rose periodically prior to the arrival of humans.
10. "Some environmentalists argue that the fact that the earth's temperature is rising shows that global warming is caused by human activity. However, this argument is a bad argument because it does not account for other possible causes, e.g., prior to the arrival of humans, periodically the earth's temperature has risen suggesting that natural processes could be involved in the present increase in temperature." 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 Problematic Premise.
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