Timothy got a job working for a political candidate who was running for mayor.
He decided to apply his knowledge about experiments in his new job and test whether the method of distributing campaign literature caused more people to vote for a candidate. He distributed campaign literature about the candidate to the Riverdale neighborhood in a bright blue envelope that a volunteer hand-placed in each person's front door. He distributed the same campaign literature about the candidate to the Golfview neighborhood by mailing it in a plain white envelope that went to each address. He later learned that Riverdale was a low-income area of the city that was almost entirely Latino and was 95 Catholic. Golfview was a mostly upper-income area in the city and its residents were 100 white Protestants. What problem with internal validity might threaten his ability to trust the experimental results?
A) selection bias
B) history effect
C) experimental mortality
D) maturation
E) testing effect
A researcher asks some teenagers to shoplift from a drugstore while he observes so that he can learn more about how they do it. This researcher may be violating the ethical principle which says
A) do not cause physical harm.
B) avoid causing psychological abuse or stress.
C) do not create new inequalities.
D) do not place subjects in legal jeopardy.
E) none of the above, it is not unethical.
Conceptualization of the dependent variable:
A) E
B) I
C) H
D) D
E) F
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