As a test of the poor-get-poorer hypothesis, which shows that socially anxious teens are less likely to communicate online and in turn feel less closeness to friends, this study explored whether peer victimization is similarly related to social media involvement. High-school participants (n = 307, M[subscript age] = 15.91) reported about their…

The purpose of this study is to evaluate the implementation and impacts of the Building Assets, Reducing Risks (BARR) model in its first year of implementation in 66 schools across the U.S. and to document scale-up progress during the Investing in Innovation (i3) grant period (2017-2021). The impact evaluation included 21,529 9th grade students…