Final answer:
The statement about Hollingshead (2000) measuring aggressiveness in children in relation to violent video games is false. The correct studies are by Anderson and Bushman (2001), who found a link between violent video games and increased aggression in children.
Step-by-step explanation:
It is false that Hollingshead (2000) measured aggressiveness in children before and after exposure to violent video games. The studies cited in the provided materials refer to Anderson and Bushman (2001) who reviewed the research on this subject and, in 2003, found causal linkages between violent video game use and aggression. Their findings mentioned an immediate increase in aggressive thoughts, emotions, and physiological arousal that increased the likelihood of acting out aggressive behavior. Additionally, other studies such as by Krahe et al. (2011) and Gentile et al. (2011) also support the notion that exposure to media violence leads to increased aggressive thoughts and behaviors, although some researchers argue that violent video games are not directly causing physical violence or criminal behavior.