Selection differences are less likely to occur when researchers
A. allow participants to assign themselves to groups.
B. use the nonequivalent control group design.
C. use pre-existing groups found in natural settings.
D. randomly assign participants to groups.
Answer: D
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A professor assembles a group of volunteers to compare two methods of studying. One group spends an hour a day on the first subject (such as psychology), then an hour on the second (chemistry), and so forth. The other group goes back and forth, with a few minutes on each topic, repeating the sequence until completing the same total study time as the first group. At the end of a week, the
professor tests each student's knowledge of each subject. Identify the independent variable and the dependent variable. What will be an ideal response?
The doctrine that objects perceived have an existence outside the mind is referred to as
a. common sense b. regularity c. realism d. determinism
"Natural" memories, for which strategies are unlikely to be applied, include ____ memories
a. semantically organized and short-term b. autobiographical and event c. short- and long-term d. encoded and retrieved
Protection against "cruel and unusual punishment" is promised by which amendment to the U.S. Constitution?
A. 4th B. 5th C. 6th D. 8th