"Karyn Riddle, a professor in the School of Journalism and Mass Communication at the University of Wisconsin-Madison who researches the effects on children and adolescents of viewing violent media, echoes Ms. Murphy’s concerns. “Watching sexual violence could be traumatizing,” she explains, “and that fear could stay with you for many years.” If you suspect that your teenager has already encountered a rape scene on television, look for an opening to talk about it. You might get the conversation started by addressing the fact that depictions of sexual violence have not always been a regular part of television. When “13 Reasons Why” first aired, I found myself talking about the sexual assault scenes with a group of 14-year-old girls at the school where I routinely consult. “You know,” I said, “we never used to show rape on T.V.” One girl quickly replied, “That’s what my dad said!” Another girl chimed in: “Good. Because it was the most upsetting thing I have ever seen.”"