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

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BlackTom AI · Accepted Answer

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 easy) and then their blood pressure is measured. Since there is deliberate manipulation of the independent variable (task difficulty) and random assignment, this is a true experiment, not correlational.
Option 2 involves comparing two training approaches (meditation vs drawing). This is essentially a comparative trial of two interventions, which is a form of experimental or quasi-experimental design, not correlational, because the researcher actively assigns or influences the conditions.
Option 3 measures stress levels in participants who receive a blood pressure drug versus placebo. This is a classic randomized or controlled trial type design, where an independent variable (drug vs placebo) is manipulated, making it experimental rather than correlational.
Option 4 explicitly states that researchers measured the association between participants’ blood pressures and their degrees of chronic stress. Here, no variables are manipulated and the relationship between two variables is examined as it naturally occurs, which aligns with correlational research.
In summary, the key distinction is manipulation versus observation of natural variation. Options 1–3 involve manipulation and control of conditions (experimental or quasi-experimental elements), whereas option 4 focuses on observing the natural association between two variables, which is the hallmark of correlational research.

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

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