Effect Modification for Interaction Flashcards
1
Q
if you observe an association and it isn’t real it is due to __ or __
A
bias or systematic error
2
Q
interaction
A
when magnitude of a measure of association meaningfully differs accordingnto value of some third variable
3
Q
interaction aka __, __, and __
A
effect modification
effect-measure modification
heterogeneity of effect
4
Q
positive interaction is called
A
synergism
5
Q
negative interaction is called
A
antagonism
6
Q
questions to determine interaction
A
1) is there an association?
2) if so, is it due to confounding?
3) is the association equally strong in strata formed based on 3rd variable?
7
Q
we want to get rid of __ and explore __
A
we want to get rid of confounding and explore interaction
8
Q
interaction is based on __, __, and __
A
interaction is based on math, stats, and biology
