What is a longitudinal study?

A longitudinal study is a research method that involves repeated observations or measurements of the same individuals over an extended period.

How long is a longitudinal study?

The duration of a longitudinal study can vary widely, from a few months to several decades. The key characteristic is the repeated observation of the same subjects over time, regardless of the study's length.

What is the difference between a longitudinal and a cross-sectional study?

A longitudinal study tracks the same individuals over time to observe changes and developments, whereas a cross-sectional study examines different individuals at a single point in time. This makes longitudinal studies more suitable for identifying trends and causal relationships.

What are the advantages of longitudinal studies?

Longitudinal studies offer several benefits, including the ability to observe changes over time, identify causal relationships, and track individual trajectories. They are particularly useful in fields like psychology, medicine, and education.

What are the disadvantages of longitudinal studies?

Some challenges of longitudinal studies include their time-consuming nature, potential for participant dropout, and the need for significant resources. Additionally, they may be subject to biases such as selective attrition.

Survey & Feedback

Longitudinal Study: Definition, Types & Examples