![subject](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 24.06.2019 22:30 corbinfisher
Researchers wanted to determine if having a video game console in the bedroom is associated with obesity. the researchers administered a questionnaire to 353 ​twelve-year-old adolescents. after analyzing the​ results, the researchers determined that the body mass index of the adolescents who had a video game console in their bedroom was significantly higher than that of the adolescents who did not have a video game console 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 administered a questionnaire to obtain their data without trying to influence an explanatory variable of the study. your answer is correct. b. the researchers intentionally changed an explanatory variable of the study. c. the researchers tried to influence the outcome 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. what type of observational study is​ this? cohort study ​case-control study ​cross-sectional study
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Social Studies
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.06.2019 00:30
Explain how nationalism led to independence in nigeria.
Answers: 2
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.06.2019 16:00
How much time on average do americans currently spend watching tv and videos per day?
Answers: 2
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.06.2019 18:30
What can you conclude about the information given here ? a)juveniles must testify in court b)adults are held to a lower standard c)the state guarantees that juveniles have legal rights much like those of adults d) punishment for juveniles violators are much more strict than those for adults
Answers: 1
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.06.2019 18:30
The u.s. intervened in korea and vietnam to stop the spread of
Answers: 1
You know the right answer?
Researchers wanted to determine if having a video game console in the bedroom is associated with obe...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 25.07.2019 04:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
Spanish, 25.07.2019 04:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 25.07.2019 04:00
![question](/tpl/images/cats/biologiya.png)
Biology, 25.07.2019 04:00
![question](/tpl/images/cats/istoriya.png)
History, 25.07.2019 04:00
![question](/tpl/images/cats/istoriya.png)
History, 25.07.2019 04:00
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 25.07.2019 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 25.07.2019 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 25.07.2019 04:00
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)