A researcher hypothesized that the drug amphetamine (a stimulant) improves learning. She explains her hypothesis to her participants and gives experimental group participants an amphetamine pill before they begin studying. Control group members get nothing. Later, she assesses how much each participant learned. Because of the hypothesis explanation and because the experimental group was given a
pill that the other group did not receive, the experimental group will most likely expect to learn more. Thus, any observed differences between groups may reflect differences in expectation, not the actual effect of the drug, a problem known as the
a. anthropomorphic error.
b. research participant bias.
c. courtesy bias.
d. double-blind experimental effect.
B
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The majority of people who are still married in late adulthood report that they are satisfied with their marriages.
Answer the following statement true (T) or false (F)
The levels-of-processing model would suggest that which of the following questions would lead to better memory of the word "frog"?
a. "Does it rhyme with blog?" b. "Is it in capital letters?" c. "Is it written in cursive?" d. "Would it be found in a pond?" e. "Have I seen this before?"
How is a field experiment similar to a lab experiment? Both involve
a. random selection. b. high internal validity. c. manipulation of an independent variable. d. control of extraneous variables.
Imagine that a salesman at a tropical resort says you can experience the thrill of a parasailing lesson for only $50. Then, before you decide one way or the other, the salesman says he will drop the price to only $30
The salesman has tried to influence you via the A) foot-in-the-door technique. B) door-in-the-face technique. C) that's-not-all technique. D) low-ball technique.