Definitions for "Longitudinal studies"
studies in which a group of people is tracked over a long period of time, sometimes even incorporating the group's children into the study as they come along
Investigation that collects information on the same individuals repeatedly over time, perhaps over many years, in an effort to determine how phenomena change. Compare with cross-sectional studies.
"before-after" studies; quasi-experimental
A research design that examines the same individuals over time. go to glossary index