Strong _________ correlations between age and incidence of Alzheimer's Disease have been found such that by the time one reaches an age of 85, they have a 50% chance of getting Alzheimer's Disease.
A) positive
B) negative
C) causal
D) predictive

Question

Quizplus · Accepted Answer

A positive correlation indicates that as one variable increases, the other variable also increases. In this context, as age increases, the incidence of Alzheimer's Disease also increases, which is a positive correlation.

Strong _________ Correlations Between Age and Incidence of Alzheimer's Disease