Abstract: Adolescents are spending an increasing amount of their time online and connected to each other via digital technologies. Mobile device ownership and social media usage have reached unprecedented levels, and concerns have been raised that this constant connectivity is harming adolescents’ mental health. This review synthesized data from three sources: (a) narrative reviews and meta‐analyses conducted between 2014 and 2019, (b) large‐scale preregistered cohort studies and (c) intensive longitudinal and ecological momentary assessment studies, to summarize what is known about linkages between digital technology usage and adolescent mental health, with a specific focus on depression and anxiety. The review highlights that most research to date has been correlational, focused on adults versus adolescents, and has generated a mix of often conflicting small positive, negative and null associations. The most recent and rigorous large‐scale preregistered studies report small associations between the amount of daily digital technology usage and adolescents’ well‐being that do not offer a way of distinguishing cause from effect and, as estimated, are unlikely to be of clinical or practical significance. Implications for improving future research and for supporting adolescents’ mental health in the digital age are discussed.
Key Points
. Adolescents are early and enthusiastic adopters of digital technologies and are increasingly spending their time connecting to the online world and to each other through their devices. This constant connectivity has led to concerns that time spent online may be negatively impacting adolescents’ mental health and wellbeing.
. We synthesized recent findings across meta-analytic studies and narrative reviews, large-scale and preregistered cohort studies, and intensive assessment studies tracking digital technology use and mental health across time.
. Most research to date has been correlational, cross-sectional, mixed in terms of the directionality, and have resulted in small associations which leave no way of separating cause from effect.
. We recommend that future research use experimental and quasi-experimental methods and focus on online experiences versus screen time as well as heterogeneity in effects across diverse populations of youth. Knowledge generated from this research should allow researchers and practitioners to leverage online tools to reduce offline disparities and support adolescents’ mental health as they come of age in an increasingly digital and connected world.
. Adolescents are early and enthusiastic adopters of digital technologies and are increasingly spending their time connecting to the online world and to each other through their devices. This constant connectivity has led to concerns that time spent online may be negatively impacting adolescents’ mental health and wellbeing.
. We synthesized recent findings across meta-analytic studies and narrative reviews, large-scale and preregistered cohort studies, and intensive assessment studies tracking digital technology use and mental health across time.
. Most research to date has been correlational, cross-sectional, mixed in terms of the directionality, and have resulted in small associations which leave no way of separating cause from effect.
. We recommend that future research use experimental and quasi-experimental methods and focus on online experiences versus screen time as well as heterogeneity in effects across diverse populations of youth. Knowledge generated from this research should allow researchers and practitioners to leverage online tools to reduce offline disparities and support adolescents’ mental health as they come of age in an increasingly digital and connected world.
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