What is a forward-looking prospective vs. retrospective research?

Prospective investigations are those that are planned ahead of time and carried out over a period of time. Retrospective cohort studies use previously collected data in order to determine risk factors for certain diseases. Because the researchers are unable to go back and collect missing data, their interpretations are limited. (Sources: ncbi.nlm.nih.gov )

See other Early Detection FAQs & Terminology

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