When we examine changes over the years in the percentage of high school seniors who say they have smoked marijuana,we find a clear inverse (mirror-image)relationship to
A)alcohol use.
B)perceived availability of marijuana.
C)perceived risk of harm in using marijuana.
D)the nation's economy.

Question

Quizplus · Accepted Answer

Studies have shown that as the perceived risk of harm in using marijuana increases, the percentage of high school seniors who say they have smoked marijuana decreases. This has been the case over the years, indicating a clear inverse relationship.

When We Examine Changes Over the Years in the Percentage