What is the range of values for the Physical Quality of Life Index (PQLI)?
A0 to 10
B0 to 50
C0 to 100
D100 to 200
If a biochemical test gives the same reading for a sample on repeated testing, it is inferred that the measurement is -
ASpecific
BAccurate
CSensitive
DPrecise
Which of the following is not a part of case-control studies?
AStrength of association
BFollow up
CMatching
DSelection of study subjects
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