Question

Do all research studies require interventions? Explain.​

Answer 1

Ans= A distinguishing characteristic of an intervention study is that the intervention (the preventative or therapeutic measure) being tested is allocated by the investigator to a group of two or more study subjects (individuals, households, communities

Answer 2

Answer:

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Explanation:

* A distinguishing characteristic of an intervention study is that the intervention (the preventative or therapeutic measure) being tested is allocated by the investigator to a group of two or more study subjects (individuals, households, communities).

Intervention (or Experimental) studies differ from observational studies in that the investigator assigns the exposure. They are used to determine the effectiveness of an intervention or the effectiveness of a health service delivery.