Author Question: The study of a specific, well-defined population over time involves a a. trend study. b. cohort ... (Read 30 times)

Melani1276 · **on:** Jun 20, 2018

The study of a specific, well-defined population over time involves a

a. trend study.
b. cohort study.
c. cohort-sequential study.
d. panel study.

Question 2

If a researcher sampled a group of people of a given age, then tested them again five years later, adding a new group of people as old as the original sample at first testing, the researcher would be using a

a. trend study.
b. cohort study.
c. cohort-sequential study.
d. panel study.