What is the correct formula for calculating the positive predictive value (PPV) of a screening test?
ATrue positives / (True positives + False negatives)
BFalse positives / (False positives + True negatives)
CTrue positives / (True positives + False positives)
DTrue negatives / (True negatives + False negatives)
Principles of Health education include all except:
APunishment
BMotivation
CParticipation
DReinforcement
Most cost effective approach for the prevention of non-communicable disease is by -
APrimary prevention
BSpecific protection
CSecondary prevention
DPrimordial prevention
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