Quiz: Chapter 1 Post-Test Time Remaining: 00:53:15 Submit Quiz This Question: 1

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Quiz: Chapter 1 Post-Test Time Remaining: 00:53:15 Submit Quiz This Question: 1 pt 16 of 22 (4 complete) This Quiz: 22 pts possible Identify the type of observational study (cross-sectional, retrospective, or prospective) described below A research company uses a device to record the viewing habits of about 2500 households, and the data collected over the next 4 years will be used to determine whether the proportion of households tuned to a particular news program decreases. Which type of observational study is described in the problem statement? O O O A retrospective study A prospective study A cross-sectional study

Explanation / Answer

Solution: A research company uses a device to record the viewing habits of about 2500 households, and the data collected over the next 4 years will be used to determine whether the proportion of households tuned to a particular news program decreases.

Which type of observational study is described in the problem statement?

Answer: A cross-sectional study

The given observational study is a cross-sectional study. Because the given study focuses on observing the viewing habits of group of household over a period of time. In a cross-sectional study, the investigator measures the outcome and the exposures in the study participants at the same time.

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