ERIC: Ecologic Studies Flashcards
1
Q
Ecologic Study
A
a study where the unit of observation is a group, not separate individuals, for one or more study variables.
2
Q
Ecologic fallacy
A
when you assume that because an exposure and outcome occurred in the group, it must also occur in individuals
3
Q
Confounding bias
A
1 of 2 types of bias in ecologic studies
a mixing of the effects of other risk factors with the exposure of interest.
4
Q
Cross Level bias
A
1 of 2 types of bias in ecologic studies
when the confounding factor is associated with the background rate of disease differentially across groups.
