Longitudinal
Longitudinal studies are a type of research design used in various fields such as psychology, sociology, epidemiology, and economics. These studies involve repeated observations of the same variables over long periods of time, often many decades.
Overview[edit | edit source]
Longitudinal studies are often used in social science and behavioral science to study life events throughout lifetimes or generations. The reason for this is that unlike cross-sectional studies, longitudinal studies track the same people, and therefore the differences observed in those people are less likely to be the result of cultural differences across generations.
Types of Longitudinal Studies[edit | edit source]
There are several types of longitudinal studies:
- Panel Study: This involves collecting data from the same individuals at several time points.
- Cohort Study: This involves studying a specific population subset, or cohort, over time.
- Retrospective Study: This involves using existing data to study a phenomenon in the past.
- Prospective Study: This involves collecting data in the future from groups sharing common factors.
Advantages and Disadvantages[edit | edit source]
Longitudinal studies have several advantages and disadvantages. They can provide a wealth of detailed information about individuals and groups, and they can help establish sequences of events or experiences. However, they can also be expensive and time-consuming, and they can lose participants over time, a phenomenon known as attrition.
See Also[edit | edit source]
References[edit | edit source]
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