A Researcher Wants to Examine the Relationship Between Viewing Television

Multiple Choice

A researcher wants to examine the relationship between viewing television violence and behaving aggressively. He has participants decide whether they would prefer to view a violent or a nonviolent film, and subsequently records the number of aggressive behaviors they show in a competitive game. The researcher cannot legitimately make a causal statement based on his findings because the study __________.

A) is low on mundane realism
B) lacks random assignment
C) has no cover story
D) lacks psychological realism