Logical Fallacy Practice 1: Answer Key

1.  "You are saying she was killed because she was immoral, and she was immoral because she was killed!" (from Anne Perry, The Cater Street Hangman, pp. 71-72)

a. hasty generalization

b. circular reasoning

c. false alternatives

d. no error

2. You will either complete all of your assigned readings for this class, or you will fail the course.

a. hasty generalization

b. circular reasoning

c. false alternatives

d. careless comparison

3.  You should never schedule your child's dentist appointments during school hours.  If you do, your child will miss more and more classes.  Before you know it, your child will be an elementary school drop out.

a. hasty generalization

b. circular reasoning

c. slippery slope (points to the future)

d. false alternatives

4. New Yorkers are so rude!  I went to New York City last summer, and two taxi-cab drivers almost ran me down.

a. hasty generalization (sample size is too small for such a generalization)

b. circular reasoning

c. slippery slope

d. false alternatives

e. careless comparison

5. I do not like writing because I do not like to write.

a. hasty generalization

b. circular reasoning

c. false alternatives

d. careless comparison

6. Students are just like customers: both groups are paying for a product, and both are always right.

a. hasty generalization

b. circular reasoning

c. false alternatives

d. careless comparison

e. personal attack

7. We must stop the University System from raising tuition.  If we don't, the System will also begin raising technology fees; then the System will increase parking fees.  Soon no one will be able to afford college.

a. hasty generalization

b. circular reasoning

c. false alternatives

d. slippery slope

e. personal attack

8.  You can't believe anything Professor Loca says concerning child development.  After all, he has no children of his own.

a. hasty generalization

b. circular reasoning

c. personal attack

d. careless comparison

e. slippery slope

9. Having leadership shows others that you can be a great leader. (student essay)

a. hasty generalization

b. circular reasoning

c. false alternatives

d. careless comparison