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Section 1.3 Homework Question 8
Section 1.3 Homework
8. 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 5000 households, and the data collected over the past 8 years will be used to determine whether the proportion of households tuned to a particular news program increased.
Which type of observational study is described in the problem statement?
- cross-sectional study
- retrospective study
- A prospective study