Question
Observational study
- Experimental study
Answer :
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Observational studies- observational studies are based on the investigator observing the real-life situation and drawing inferences from this. Therefore, there is potential for biases and confounding, which must be considered when interpreting the results. Observational studies can be classified into three types - Cross sectional studies, Cohort studies, Case-control studies, according to the method of selection of participants.
Experimental
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