Nbme Cbse: Public Health Sciences Pt. 1 [Exam Questions And Answers Graded A] Real Exam

What does a value approaching 100% in sensitivity indicate? {Ans: Desirable for ruling out disease, indicates a low false-negative rate.}What are the Bradford Hill Criteria? {Ans: Principles supporting evidence of a causal relationship}What is the definition of P value? {Ans: Probability of obtaining results as extreme as observed assuming null hypothesis is correct.}What is an adoption study? {Ans: Compares behavioral traits/genetics in siblings raised by biological vs adoptive parents to measure heritability and influence of environmental factors.}What is lead-time bias? {Ans: Early detection interpreted as an increase in survival, but the disease course has not changed}Experiment {Ans: Empirical evidence supporting cause and effect}