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Chapter 2 - The Research Enterprise in Psychology
b. Do height and clothing style interact to influence judgments of credibility?
c. Does persuasion interact with any other factors?
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d. Does persuasion influence our perception of height and clothing?
ANSWER: b a. The measurement of the dependent variable depends on the effect of the independent variable. b. The measurement of one dependent variable gets added to the measurement of another. c. The effects of one independent variable get added to the effects of another. d. The effects of one independent variable depend on the effects of another.
71. What does it mean when there is an interaction between two variables?
ANSWER: d a. its precise control b. its ability to be generalized to multiple contexts c. its ability to duplicate real life in the laboratory d. its appeal to participants
72. What is the main advantage associated with the experimental method?
ANSWER: a a. correlational b. experimental c. case history d. empirical
73. Which research method gives researchers the ability to infer a cause-and-effect relationship?
ANSWER: b a. Experiments often can’t be done for practical or ethical reasons. b. Only one variable can be studied at a time. c. Length of time necessary to complete the study. d. Inability to generate cause-and-effect conclusions.
74. Which of the following is a disadvantage of the experimental method?
ANSWER: a a. It is not ethical to conduct experiments with people with disabilities. b. People cannot be randomly assigned to a group that experiences a head injury. c. Disability cannot be operationally defined. d. Experiments cannot be used to study interaction effects.
75. Shelley is a researcher who studies disabilities as a result of head injuries. She has chosen to use nonexperimental methods because of some of the limitations of experiments. Which of the following limits would most likely cause problems for Shelley’s research?
ANSWER: b
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