Question

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 15,000​ households, and the data collected over the next 7 years will be used to determine nbsp whether nbsp the proportion of households tuned to a particular sports program nbsp decreases.
Which type of observational study is described in the problem​ statement?a. A prospectiveprospective studyb. A cross-sectional studyc. A retrospectiveretrospective study

Answer 1

Answer:

B. A cross-sectional study.

Explanation:

Observational studies include the observation of the effects of risk factors, diagnostic examinations, treatment or other intervention by the researchers in order to measure certain outcomes.

A cross-sectional study also known as transverse study or prevalence study is a sub-branch of observational study that involves the analysis of data(cross-sectional data) from the population or a representative subset at a precise point of time. Thus, the problem statement provided here illustrates the cross-sectional study as it observes and analyzes cross-sectional data.