Maartje Boer

CHAPTER 5 ATTENTIONDEFICIT HYPERACTIVITY DISORDER- SYMPTOMS, SOCIAL MEDIA USE INTENSITY, AND SOCIAL MEDIA USE PROBLEMS IN ADOLESCENTS: INVESTIGATINGDIRECTIONALITY Maartje Boer, Gonneke W. J. M. Stevens, Catrin Finkenauer, and Regina J. J. M. van den Eijnden Author Contributions All authors conceived of the study. MB conducted the literature review, data analyses, and drafted the initial and revised manuscript. RvdE initiated and coordinated the data collection of the data from the present study. GS, CF, and RvdE critically reviewed all sections of the initial and revised manuscript and advised during all stages of the manuscript preparation. All authors approved of the final manuscript. Publication Boer, M., Stevens, G. W. J. M., Finkenauer, C., & Van den Eijnden, R. J. J. M. (2020). Attention deficit hyperactivity disorder-symptoms, social media use intensity, and social media use problems in adolescents: Investigating directionality. Child Development 91 (4), e853-865. https://doi. org/10.1177/10731911211027232