Chapter 2: Problem 15
Anecdotal evidence: A. is often concrete, vivid, and memorable. B. tends to influence people. C. is fundamentally flawed and unreliable. D. is all of the above.
Chapter 2: Problem 15
Anecdotal evidence: A. is often concrete, vivid, and memorable. B. tends to influence people. C. is fundamentally flawed and unreliable. D. is all of the above.
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Get started for freeThe 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.
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.
Which of the following correlation coefficients would indicate the strongest relationship between two variables? A. .58 C. -.97 B. .19 D. -.05
A tentative prediction about the relationship between two variables is: A. a confounding of variables. B. an operational definition. C. a theory. D. a hypothesis.
Researchers must describe the actions that will be taken to measure or control each variable in their studies. In other words, they must: A. provide operational definitions of their variables. B. decide if their studies will be experimental or correlational. C. use statistics to summarize their findings. D. decide how many subjects should participate in their studies.
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