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

[Melani1276]

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.

[ErinKing]

Answer to Question 1

b

Answer to Question 2

c

[Melani1276]

Thanks for the timely response, appreciate it

[pangili4]

Excellent