In the article Going to Pot, about adolescent drug use, the primary research method was

One societal factor that increases prejudice of one group against another is when the dominant group of the country feels threatened by____________

a. the loss of a large group of emigrants from another country b. changes in expectations for the population c. the influx of a large group of immigrants from another country d. government intervention associated with economic changes

According to cross-cultural research on the key factors that contribute to prejudice, although some factors are probably unavoidable, others can be ___________

a. examined b. demonstrated c. overcome d. inevitable