Question

A graduate student in nursing decided to do a project on the effect of television on childhood cholesterol levels. She asked her co-workers how much time their children watched TV and measured the cholesterol of each child. Her results showed that children who watch more than two hours of television each day tend to have higher cholesterol levels than children who watch less than two hours of television each day.

1) Provide an example of a confounding variable for this study. Explain how this confounding variable may affect the results of this study.

2) Explain to what population the results of this study apply.

Answer 1

A graduate student in nursing decided to do a project on the effect of television on childhood cholesterol levels. She asked her co-workers how much time their children watched TV and measured the cholesterol of each child. Her results showed that children who watch more than two hours of television each day tend to have higher cholesterol levels than children who watch less than two hours of television each day.

1) Provide an example of a confounding variable for this study. Explain how this confounding variable may affect the results of this study.

Unhealthy dietary habits is one of the confounding variable for this study. Watching TV increases the Unhealthy dietary habits and Unhealthy dietary habits increase the cholesterol levels.

2) Explain to what population the results of this study apply.

The researcher asked her co-workers how much time their children watched TV. The target population is all Children with their fathers are working and having TV in their house.