Quiz

1. Which of the following is a statement?
Multiple Choice
•    “Close the door.”
•    “Let’s have lunch.”
•    “I’m not hungry.”
•    “What did you say?”

2. As understood by logicians, an argument is
Multiple Choice
•    a set of statements, one of which is supported by the others.
•    a verbal dispute between two or more people.
•    a major contributing factor to the high rate of divorce in the United States.
a sentence that is either true or false

3. Chocolate ice cream is better than strawberry.” This is
Multiple Choice
•    a statement.
•    not a statement.

4. Inductive logic is concerned with methods of evaluating arguments for
Multiple Choice
•    strength and weakness.
•    cogency and uncogency.
•    validity and invalidity.
soundness and unsoundness.

5. An argument form is
Multiple Choice
•    a word or phrase that stands for a class.
•    a pattern of reasoning.
•    a statement that is used as a premise.
•    a worksheet for identifying the premises and conclusion of an argument

6. “The death penalty is morally wrong.” This is
Multiple Choice
•    a statement.
•    not a statement.

7. The Principle of Charity requires that we
Multiple Choice
•    put an ambiguous or unclear argument in the best possible light when rewriting it as a well-crafted argument.
•    ignore mistakes in reasoning when we agree with an argument’s conclusion.
•    not distort an argument’s meaning when rewriting it as a well-crafted one.
•    correct any mistakes in reasoning in an argument we are analyzing.

8.  A premise of an argument is
Multiple Choice
•    a statement intended to provide support for another statement.
•    an underlying assumption.
•    the statement that is being affirmed on the basis of others.
•    a word or phrase whose purpose is to persuade.

9. The main feature of a valid argument is
Multiple Choice
•    it is possible for the conclusion to be true.
•    it is not necessary that if the premises are true, then the conclusion is true.
•    it is necessary that if the premises are true, then the conclusion is true.
•    it is not possible for the conclusion to be false.

10. The Principle of Fairness requires that we
Multiple Choice
•    consider an individual to be innocent until proven guilty.
•    not eliminate anything—including repetitions, assurances, and so on—when rewriting an argument as a well-crafted one.
•    place the burden of proof on the person whose view is contrary to the majority opinion.
•    be loyal to the original argument and not distort its meaning when rewriting it as a well-crafted argument.

11. “My brother has a cat named Sully.” This is
Multiple Choice
•    a statement.
•    not a statement.

12. The statement “Pat is a mother only if Pat is a woman” is a stylistic variant of which type of statement?
Multiple Choice
•    disjunction
•    conditional
•    negation
•    conjunction

13. A term is
Multiple Choice
•    a 15-week semester of college.
•    a word or phrase that stands for a class.
•    a length of time in public office.
a pattern of reasoning.

14. Identify the following as valid, invalid, strong, or weak: “Assuming Betty’s flight leaves on time, she will arrive in Seattle at 6:00 p.m. Betty’s flight did leave on time, so she will arrive in Seattle at 6:00 p.m.”
Multiple Choice
•    valid
•    invalid
•    strong
•    weak

15. “Pigs can fly.” This is
Multiple Choice
•    a statement.
•    not a statement.

16. Identify the following as valid, invalid, strong, or weak: “All men are mortal. Socrates is mortal. ? Socrates is a man.”
Multiple Choice
•    valid
•    invalid
•    strong
•    weak

17. “You don’t have any brothers or sisters, do you?” This is
Multiple Choice
•    a statement.
•    not a statement.

18. Which of the following is an example of a report?
Multiple Choice
•    A mammal is a warm-blooded animal that nurses its young. So, for example, whales, cats and humans are mammals but turtles, birds, and insects are not.
•    If Germany had invented the atomic bomb first, they would have won World War II.
•    73 percent of all Americans are opposed to the death penalty.
•    Skunks get hit by cars more than other animals because they tend to stand their ground rather than flee.

19. If an argument is strong, then
Multiple Choice
•    its premises are all true.
•    it is improbable (but possible) that the conclusion is false on the assumption that the premises are true.
•    it is impossible for the conclusion to be false on the assumption that the premises are true.
•    the conclusion is true.

20. The argument form “If A then B; Not B; So, not A” is called
Multiple Choice
•    modus tollens.
•    constructive dilemma.
•    hypothetical syllogism.
•    modus ponens.

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