Chapter 2: Problem 11
Sampling bias exists when: A. the sample is representative of the population. B. the sample is not representative of the population. C. two variables are confounded. D. the effect of the independent variable can't be isolated.
Chapter 2: Problem 11
Sampling bias exists when: A. the sample is representative of the population. B. the sample is not representative of the population. C. two variables are confounded. D. the effect of the independent variable can't be isolated.
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Get started for freeAmong the advantages of descriptive/correlational research is (are): A. it allows investigators to isolate cause and effect. B. it permits researchers to study variables that would be impossible to manipulate. C. it can demonstrate conclusively that two variables are causally related. D. both a and b.
The problem of experimenter bias can be avoided by: A. not informing subjects of the hypothesis of the experiment. B. telling the subjects that there are no "right" or "wrong" answers. C. using a research strategy in which neither subjects nor experimenter know which subjects are in the experimental and control groups. D. having the experimenter use only nonverbal signals when communicating with the subjects.
When psychologists say that their results are statistically significant, they mean that the results: A. have important practical applications. B. have important implications for scientific theory. C. are unlikely to be due to the fluctuations of chance. D. are all of the above.
In a study of the effect of a new teaching technique on students' achievement test scores, an important extraneous variable would be the students': A. hair color. C. IQ scores. B. athletic skills. D. sociability.
PsyclNFO is: A. a new journal that recently replaced \(P\) sychological Abstracts. B. a computerized database containing abstracts of articles, chapters, and books reporting psychological research. C. a reference book that explains the format and techniques for writing journal articles. D. a computerized database containing information about studies that have not yet been published.
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