Researchers wanted to determine if having a supply of sugary snacks in the bedro
ID: 3059115 • Letter: R
Question
Researchers wanted to determine if having a supply of sugary snacks in the bedroom is associated with obesity. The researchers administered a questionnaire to 374 twelve-year-old adolescents. After analyzing the results, the researchers determined that the body mass index of the adolescents who had a supply of sugary snacks in their bedroom was significantly higher than that of the adolescents who did not have a supply of sugary snacks in their bedroom. Complete parts (a) through (e) below. (a) Why is this an observational study? What type of observational study is this? Why is this an observational study? A. The researchers intentionally changed an explanatory variable of the study. B. The researchers tried to influence the outcome of the study. C. The researchers administered a questionnaire to obtain their data without trying to influence an explanatory variable of the study. D. The researchers observed the behavior of the individuals in the study without trying to influence an explanatory variable of the study.
Explanation / Answer
Researchers wanted to determine if having a supply of sugary snacks in the bedroom is associated with obesity. The researchers administered a questionnaire to 374 twelve-year-old adolescents. After analyzing the results, the researchers determined that the body mass index of the adolescents who had a supply of sugary snacks in their bedroom was significantly higher than that of the adolescents who did not have a supply of sugary snacks in their bedroom. Complete parts (a) through (e) below. (a) Why is this an observational study? What type of observational study is this? Why is this an observational study? A. The researchers intentionally changed an explanatory variable of the study. B. The researchers tried to influence the outcome of the study. C. The researchers administered a questionnaire to obtain their data without trying to influence an explanatory variable of the study. D. The researchers observed the behavior of the individuals in the study without trying to influence an explanatory variable of the study.
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