mdcat logical reasoning MCQ #549

A population shows higher cancer rates near a chemical plant. What study design would best establish causality?

mdcat logical reasoning MCQ #549

  1. Question 1

    Q1. A population shows higher cancer rates near a chemical plant. What study design would best establish causality?

    • A) Prospective cohort study tracking exposed vs. non-exposed groups
    • B) Case-control study comparing cancer patients with controls
    • C) Cross-sectional survey of current chemical exposure
    • D) Ecological study comparing regional cancer rates

    Answer: Prospective cohort study tracking exposed vs. non-exposed groups

    Explanation: Prospective studies track outcomes temporally. Prospective cohort study tracking exposed vs. non-exposed groups is correct because it matches what the question requires. USAT, HAT and MDCAT analytical sections repeat this pattern.