Here are the abstracts:
Does parental mediation of media influence child outcomes?
A meta-analysis on media time, aggression, substance use, and sexual behavior.
Collier, K. M., Coyne, S. M., Rasmussen, E. E., Hawkins, A. J., Padilla-Walker, L. M., Erickson, S. E., & Memmott-Elison, M. K. (2016). Does parental mediation of media influence child outcomes? A meta-analysis on media time, aggression, substance use, and sexual behavior. Developmental Psychology, 52(5), 798-812
Violence exposure subtypes differentially mediate the relation between callous-unemotional traits and adolescent delinquency.
Oberth, C., Zheng, Y., & McMahon, R. J. (2017). Violence exposure subtypes differentially mediate the relation between callous-unemotional traits and adolescent delinquency. Journal of Abnormal Child Psychology. Advance online publication.
Parental mediation in an evolving media landscapeCommonalities, contrasts, and implications for design.
Fisch, S. M. (2017). Parental mediation in an evolving media landscapeCommonalities, contrasts, and implications for design: Commentary on chapter 13. In R. Barr & D. N. Linebarger (Eds.), Media exposure during infancy and early childhood: The effects of content and context on learning and development (pp. 221-226).
Edit - Don't want to skew too far off topic but just pointing out that there are sources of research on this. Most not free, unfortunately, but there ya go.