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zzz [600]
3 years ago
14

Researchers wanted to determine if having a video game console in the bedroom is associated with obesity. The researchers admini

stered 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
Social Studies
1 answer:
goldfiish [28.3K]3 years ago
4 0

<u>Question 1</u>

The correct answer is: "The researchers administered a questionnaire to obtain their data without trying to influence an explanatory variable of the study".

An observational study is one in which the researcher observes the effect of a variable without manipulating the conditions that surround the exposure or the subjects who are exposed to it. In this example, he simply hands out questionaires to the 353 individuals that compose the sample drawn from the population of interest: 12-year old teenagers.

<u>Question 2</u>

The correct answer is: "a cohort study".

The researcher is interested on a population group where all the components share a common characteristic (12-year old) and therefore they all belong to the same cohort. Subsequenly, he evaluates the differences between the ones who have been exposed to the explanatory variable (having a video console in the bedroom) and those who have not.

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Answer: The process by which Dr. Blakely is putting together a set of integrated factors to explain Stephen's disturbance is: Clinical Picture.

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<u>In this case, Dr. Blakely is constructing a clinical picture, but since he is a behavioral psychologist, his clinical picture is certainly influenced by the behavioral theory. </u>

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<u>In conclusion, Dr. Blakely is putting together a clinical picture because he is integrating all of the details and factors that are causing disturbances to the patient.</u>

6 0
3 years ago
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Providing leadership, maintaining order, providing public services, national security, economic security, and economic assistance.

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The six function of United States government are providing leadership which lead the country on the path of prosperity, maintaining law and order, providing public services such as justice, food and shelter, providing security to the citizen against internal and external threats, providing economic security in order to maintain the economy better, and providing economic assistance whenever a citizen needed any help in their business through loans.

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7 0
2 years ago
What effect has imperialism in Africa had on the borders of African nations today?
ryzh [129]

I believe the answer is: They are based on the arbitrary borders of old European empires

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2 years ago
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Which is false:
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Answer:

B. . exotic= ephemeral

Explanation:

An organism is considered as 'Exotic' if the organisms exist in an environment outside of their natural habitat (for examples, polar bear that is imported to a zoo in california.)

Ephemeral organisms on the other hand, exist naturally on ecosystem such as wetlands or lake. These organism do not exist all year long, but they did not live outside their natural habitat.

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