Researchers have found that among schoolchildren, as the amount of time they spend reading increases, so do their grades. This is an example of a(n) ______.
A) positive correlation
B) negative correlation
C) additive correlation
D) statistical anomaly

Question

Quizplus · Accepted Answer

A positive correlation involves two variables that move in the same direction, meaning that as one variable increases, the other variable also increases. In this case, the amount of time spent reading and grades are positively correlated, as increasing one variable (time spent reading) leads to an increase in the other variable (grades).

Researchers Have Found That Among Schoolchildren, as the Amount of Time