Question
In a study of a new drug intended to reduce anxiety, a researcher has a low dose group, a medium dose group, and a placebo
In a study of a new drug intended to reduce anxiety, a researcher has a low dose group, a medium dose group, and a placebo control group. How many theoretical populations are represented in this study?
three
one
two
four
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Research In Psychology Methods And Design
Authors: C James Goodwin
8th Edition
1119330440, 978-1119330448
