Observational Study Assignment
Observational Study Assignment
Answer the following questions for each study described below.
(1) Is the study primarily an observational study, a correlation
study, or an experiment? Why do you give the answer you did? (2)
What are the variables involved in the study? For experiments,
specify the independent and dependent variables. (3) What might
be the hypothesis that the researchers are trying to test?
1. A researcher is interested in the relationship between
caffeine consumption and level of stress. She has participants
keep a diary for one week during which they count the number of
cups of coffee, tea, and cola-based soft drinks they consume, as
well as recording consumption of chocolate and medications that
have caffeine as an ingredient. In addition, participants complete a
measure of “daily hassles” experienced during the week.
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