Bjorkqvist- violent film, higher physical aggression than those who watched a non-violent film 

 Huesmann, 6-10, 15yrs later, early exposure predicted adult aggression 

 Bushman&Huesmann,431, A+C, ST- adults, LT- child 

 Anderson&Dill, white noise, Video game v Puzzle

 Anderson, 7-9, 2, exposure to VG=more verbally& physically aggressive, less prosocial 

 Greitemeyer&Mürgge, 98, Violent games -> aggression,

 some studies show no relationship, Furguson&Kilburn- when aggression towards another person/crime is a measure 

 Unrepresentative sample- US male undergrads, lack pop validity

Ferguson, other variables weren't controlled that explain why pps want to play violent games, dissapears

 Measures are artificial such as noise blasts, PPS in longitudinal studies exposed to other media 

 Przybylski, difficulty, frustration, non-violent games