Promoting Self-Regulated Social Media Use on Smartphones With a Mobile Intervention App (Wellspent): Randomized Controlled Trial

Lea Mertens   ¹ , MSc ;   Lina Christin Brockmeier   ^{2, 3} , MSc ;   Christina Roitzheim   ⁴ , MSc ;   Theda Radtke   ⁵ , Prof Dr ;   Tilman Dingler   ⁶ , Dr rer nat ;   Jan Keller   ^{2, 7} , Prof Dr

¹ Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands

² Department of Education and Psychology, Freie Universität Berlin, Berlin, Germany

³ School of Computing and Information Systems, University of Melbourne, Melbourne, Australia

⁴ Wellspent GmbH, Berlin, Germany

⁵ Health Psychology and Applied Diagnostics, University of Wuppertal, Wuppertal, Germany

⁶ Department of Sustainable Design Engineering, Delft University of Technology, Delft, The Netherlands

⁷ Department of Psychology, Heidelberg University, Heidelberg, Germany