The local health department of a small town has hired a research firm to study the development of cancer in residents in the town due to a suspected cancer-causing agent and environmental pollution.The researcher will compare data on the same participants at age 10,20,30,40,50,60,70,and so on,to see if there are increasing rates of cancer in the town.This type of research study is called a
A)longitudinal design.
B)cross-sectional design.
C)cohort research design.
D)correlational research design.

Question

Quizplus · Accepted Answer

A longitudinal design involves following the same group of participants over a long period of time to study changes or development. In this case, the researcher is comparing data on the same participants at different ages to see if there are increased cancer rates, making it a clear example of a longitudinal design. Cross-sectional design involves comparing different groups at the same point in time, cohort research design involves studying groups who share a particular characteristic (such as being born in the same year), and correlational research design involves studying the relationship between two variables.

The Local Health Department of a Small Town Has Hired