Which type of study examines the same group over time?

Question

Quizplus · Accepted Answer

A longitudinal study examines the same group of individuals over a period of time, usually years or decades, to measure changes or development in behavior, health, or other characteristics. Cross-sectional studies, on the other hand, measure differences between groups at a specific point in time, while group-comparison studies compare different groups but do not necessarily follow them over time. Extended-examination study is not a recognized type of study.

Which Type of Study Examines the Same Group Over Time