"TV Pro Wrestling Spurs Teen Violence" is the headline of an article that reports on a study that related the viewing of pro wrestling on television with violent behavior such as date fights (verbal or physical abuse taking place in social settings traditionally known as "dates").
a. Describe how data could have been gathered via a retrospective observational study; what is a major drawback to such a study design?
b. Describe how data could have been gathered via a prospective observational study; what is a major drawback to such a study design?
c. Assuming there is, in fact, some relationship between watching pro wrestling and teen violence, give a brief alternative explanation that is different from the headline's claim that "TV pro wrestling spurs teen violence."