Dr. Wallace conducted a pre-post testing study where, in the pre-test, the subjects had their reaction times measured through the use of a 30-year-old apparatus that was built especially for this purpose.
After many hours of sleep deprivation, the subjects then had their reaction times measured again, but this time Dr. Wallace used a new piece of equipment that she recently purchased. This change in instrumentation might be problematic in terms of
a. testing changes.
b. regression to the mean.
c. maturation.
d. statistical control.
Question 2
In recent psychological research that has received criticism on ethical grounds, the authors (Kagan and Liston, 2002)
a. failed to cite research by other psychologists that was important and relevant to the development of their ideas.
b. claimed to have completed a study but they did not actually carry it out.
c. subjected participants to high levels of pain without first obtaining informed consent.
d. published a figure that originally came from the research of other psychologists that had appeared in a different journal
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