One reason that cross-sectional studies are more common than longitudinal studies is the fact that
A) cross-sectional studies involve large numbers of subjects.
B) longitudinal studies involve very sophisticated statistical procedures.
C) cross-sectional studies take many years to complete.
D) longitudinal studies take many years to complete.

Question

Quizplus · Accepted Answer

Longitudinal studies involve following a group of participants over an extended period of time, often several years or even decades. This makes them more time-consuming and expensive than cross-sectional studies, which only require data to be collected at one point in time. As a result, cross-sectional studies are more common than longitudinal studies in many fields.

One Reason That Cross-Sectional Studies Are More Common Than Longitudinal