Eine Längsschnittstudie ist ein Forschungsdesign der empirischen Forschung zur Untersuchung sozialer und individueller Wandlungsprozesse. Bei einer Längsschnittstudie wir im Unterschied zu einer Querschnittstudie, dieselbe empirische Studie zu mehreren Zeitpunkten durchgeführt und die Ergebnisse der einzelnen . It is often a type of observational study, although they can also be structured as longitudinal randomized experiments. A longitudinal study is an observational research method in which data is gathered for the same subjects repeatedly over a period of time. Longitudinal research projects can extend over years or even decades.
What makes a this type of study unique is its long timeline.
In a longitudinal study subjects are followed over time with continuous or repeated monitoring of risk factors or health outcomes, or both. At one extreme a large population may be studied over decades. For example, the longitudinal study of the Office of . Englisch-Deutsch-Übersetzung für longitudinal study im Online-Wörterbuch dict. A wide variety of scientific questions can only be addressed by utilizing longitudinal data together with statistical methods that facilitate . This study was designed as a seven-year longitudinal investigation of marital compatibility and other aspects of married life, such as fertility.