Recent Longitudinal Cohort Studies Investigating the Relationship Between Heavy Marijuana

Multiple Choice

Recent longitudinal cohort studies investigating the relationship between heavy marijuana use and risk for developing psychosis

A) show that there is no relationship between the two.
B) indicate that early, heavy use of marijuana decreases the risk of later psychosis.
C) suggest that early, heavy marijuana use doubles the risk of later development of psychotic symptoms.
D) cannot be taken seriously because of individual differences.