What Is a Longitudinal Study?

At a Glance

Longitudinal studies collect data on multiple occasions from the same contributors over a defined period of time.


Longitudinal studies can provide valuable insight into how contributors behave and interact with their surroundings, an experience, or a brand over time in their everyday lives.

Longitudinal studies can be conducted at any time during the lifecycle of a product. However, they are typically done when collecting feedback on a live product or service:

  • Before development, as a way to gather requirements and understand users
  • After a site or product has been launched, to gather data on how, when, and why people naturally use it

For more information, see our article on diary studies.

For help with longitudinal studies, learn more about UserTesting's Professional Services.

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