Biology Forums - Study Force

According to the text, Doob and Macdonald thought the relationship between TV
  exposure and fear of criminal victimization that was often observed by George Gerbner
  in his studies was, quite possibly, due to a variable that Gerbner had ignored in previous
  studies. That variable was:

 
 

a. level of prior aggression in the population
  b. level of socio-economic status of the population
  c. whether or not a city had a professional sports franchise
  d. level of crime in a persons neighborhood
  e. perceived level of ability to deal with criminal behavior when it happened

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