Debbie suffers from insomnia whenever she drinks coffee in the evening. In other words, her insomnia is _____ upon coffee drinking.
A) spatially contiguous
B) contingent
C) covariable
D) functionally contiguous
Question 2
The term _____ refers to a predictive relationship between two events.
A) covariance
B) contiguity
C) contingency
D) correlation