Answer:
Two key pieces of evidence from research conducted by Michele Ybarra and Amanda Lenhart on cyber abuse are:
1. **Prevalence of Cyberbullying:** Lenhart, along with Madden and Hitlin, found that a significant portion of youth experience cyberbullying. Their research showed that online harassment is a common issue, particularly among teenagers, with notable rates of both victimization and perpetration using digital platforms [[❞]](https://academic.oup.com/book/8476/chapter/154292849#:~:text=URL%3A%20https%3A%2F%2Facademic.oup.com%2Fbook%2F8476%2Fchapter%2F154292849%0ALoading...%0AVisible%3A%200%25%20).
2. **Impact on Victims:** Lenhart and colleagues also highlighted the emotional impact of online harassment. A 2011 survey indicated that 53% of young people reported being deeply upset by their experiences with online harassment, demonstrating the severe emotional toll cyber abuse can have on victims [[❞]](https://academic.oup.com/book/8476/chapter/154292849#:~:text=URL%3A%20https%3A%2F%2Facademic.oup.com%2Fbook%2F8476%2Fchapter%2F154292849%0ALoading...%0AVisible%3A%200%25%20).