Use of which of the following substances has been implicated in the development of schizophrenia in vulnerable individuals?
a. MDMA (ecstasy)
b. methamphetamine
c. heroin
d. marijuana
Question 2
Research has identified several factors that might explain the prevalence of schizophrenia in urban environments. One of them is the stress related to
a. keeping up with neighbors financially, by buying expensive houses and cars.
b. commuting long distances to work.
c. racism.
d. outdoor noise levels.