Practice Quiz

Directions:
Choose the best answer for each question. Press the grading button to see how well you did. Take this quiz until you get 100% correct.

1. How does the story of Clever Hans relate to psychology?

a. It is an example of knowledge by authority.
b. It is an example of testing alternative explanations of behavior.
c. It is an example of prediction. Correlation does not imply causation.
d. It is an example illustrating Aristotle's principle of deduction.
e. Both a and d.

2. In a classic double-blind experiment to test the effect of penicillin on surviving a strep throat infection, patients with strep throat are randomly assigned by the toss of a coin to receive either penicillin or placebo. What is the independent variable?

a. heads or tails.
b. placebo, or sugar tablet.
c. penicillin or placebo.
d. random.
e. dead or alive.

3. In a classic double-blind experiment to test the effect of penicillin on surviving a strep throat infection, patients with strep throat are randomly assigned by the toss of a coin to receive either penicillin or placebo. What is the dependent variable?

a. heads or tails.
b. placebo, or sugar tablet.
c. penicillin or placebo.
d. random.
e. dead or alive.

4. In a classic double-blind experiment to test the effect of penicillin on surviving a strep throat infection, patients with strep throat are randomly assigned by the toss of a coin to receive either penicillin or placebo. Why not give everyone the penicillin?

a. because of spontaneous remission.
b. because we don't want everyone to live.
c. we need the dependent variable to be random.
d. because we need the doctors to be blind.
e. because the patients must be blind.

5. What is wrong with the theory that all behavior is determined by the actions of logically unverifiable Brownies?

a. it is not testable; therefore, it is meaningless.
b. It seems implausible; therefore, it should not be considered.
c. the theory makes wrong predictions.
d. nothing. The theory helps explain the complexities of behavior.
e. the theory does not explain the id, superego, and ego.

6. Suppose we wanted to find out about the effects of antibiotics on health. We conduct a survey of U.S. hospitals to compare the length of life of all patients who either did or did not receive antibiotics.

a. if those who received antibiotics live longer than others it would show that antibiotics are beneficial.
b. if those who receive antibiotics have shorter lives on the average, it would show that antibiotics are harmful.
c. if there were no relationship between taking antibiotics and length of live, it would show that antibiotics have no effect.
d. none of the above.
e. a, b, and c.

7. What is a within-Ss experiment?

a. each S receives both (or all) levels of the I.V.
b. each S receives both (or all) levels of the D.V.
c. each S is randomly assigned to one level of the I.V.
d. each S. is randomly assigned to one level of the D.V.
e. two of the above.

8. Suppose the number of crimes in a city can be predicted from the number of telephone poles in the city. This finding proves:

a. telephone poles cause crime.
b. crime causes people to purchase telephones, which causes more telephone poles to be installed.
c. cities with large populations have more crime.
d. replacing the old-fashioned telephone poles with underground cable would reduce crime.
e. none of the above.

9. All Girls wear dresses. Mary wears a dress. Therefore, Mary is a girl. What type of argument is this?

a. deduction.
b. wrong thinking.
c. induction.
d. causation.
e. heated.

10. Why do we need to do research?

a. because previous theories published in books are often wrong. We need to do research to test theories.
b. Because computers cannot answer empirical questions.
c. because we want to answer questions that can only be answered by research.
d. because we want to test alternative explanations of behavior.
e. all of the above.

End of Quiz!

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