Studies in which investigators manipulate the participants to find associations as well as causation; Provide strong evidence for cause/etiology, but must be carefully assessed for bias

University of Notre Dame

Types of epidemiological studies include:

- Observational studies
- Experimental studies

Approaches to Epidemiological Studies

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Studies in which data is gathered from participants without manipulation by the researchers, such as through interviews. May sometimes be the only ethical option for a study. Do not necessarily prove casual relationships, only provide associations to suggest possible causes

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