Interventional study is used for:-
High-Yield Explanation
CLASSIFICATION OF EPIDEMIOLOGICAL STUDIES: 1. OBSERVATIONAL STUDIES: - Descriptive studies - Hypothesis formation is done - Analytical studies - Hypothesis testing is done by coho study/ case-control / cross-sectional/ Ecological studies. 2. EXPERIMENTAL/ INTERVENTIONAL STUDIES: - Hypothesis confirmation is done - Done by clinical trials/ RCT's / Field trials/ Community trials.