题目
题目
单项选择题

Which of the following is the best example of a correlational research study?

选项
A.Researchers assigned participants to do either a stressful task or an easy task and then measured the participants’ blood pressure.
B.Researchers compared the blood pressure of participants who were trained to reduce stress by meditating and participants who were trained to reduce stress by drawing.
C.Researchers measured the stress levels in participants who were given a blood pressure drug and participants who were given a placebo drug.
D.Researchers measured the association between participants’ blood pressures and their degrees of chronic stress.
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标准答案
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思路分析
To determine the best example of a correlational research study, start by recalling what correlational research entails: it involves measuring two variables and assessing the relationship between them without manipulating either variable. Option 1 describes an experimental setup where participants are randomized to different tasks (stressful vs ea......Login to view full explanation

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