A study that compares the health of a sample of Indians before and after their income is raised by an event not controlled by the experimenter is an example of
A) a case‐control study
B) a natural experiment
C) a prevalence study
D) a randomised experiment
Correct Answer:
Verified
Q1: If the risk of a disease is
Q2: A cohort study involves
A)studying a group of
Q3: An odds ratio less than 1 indicates
Q4: A researcher calculates the risk and odds
Q5: Longitudinal studies provide
A)stronger evidence of causality than
Q7: Case‐control studies
A)identify a representative section of the
Q8: A cross‐sectional study finds that skull fracture
Q9: Prevalence measures whereas incidence measures
A)risk ratios, odds
Q10: A researcher is studying the prevalence of
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