You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of these is the best study to evaluate effect and outcome? and explain in detail?
Ans: A. Clinical trialAmong the given options, clinical trial is the best study to evaluate effect and outcome.Randomized control trial (Experimental study or Intervention study):Considered as the ideal design to evaluate the effectiveness and the side-effects of new forms of intervention.Coho Study:A study design where one or more samples (called cohos) are followed prospectively and subsequent status evaluations with respect to a disease or outcome are conducted to determine which initial paicipants exposure characteristics (risk factors) are associated with it.