This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiological Study, Subject name: Social & Preventive Medicine
[{'content': 'Hypothesis is not tested by? \nSelect and explain. \nA. Descriptive studies, B. Analytical studies, C. Case control studies, D. Cohort studies', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) Descriptive studiesREF: Park 20th ed p. 66The objective of analytical studies is to test the hypothesis and not formulate it.The objective of descriptive studies is to formulate hypothesis and not test it.', 'role': 'assistant'}]