Analytical Epidemiology

Question 1

4 Kinds of Variables

Answer 1

Nominal/Categorical - no mathematical/order (black/white, male/female)
Ordinal Variables - rank ordered, like light/heavy/moderate cigarette smoking
Discrete Variables - meaningful mathematical distance, but not perfectly mathematical (temperature)
Continuous Variables

Question 2

Reliability

Answer 2

Ability of a measuring instrument to produce same result each time the same thing is measured