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.

We investigated first-person plural pronoun use (we-talk) by health-compromised smokers and their spouses as a possible implicit marker of adaptive, problem-resolving communal processes. Twenty couples in which one or both partners used tobacco despite one of them having a heart or lung problem participated in up to 10 sessions of a smoking cessation intervention designed to promote communal coping, where partners define smoking as "our" problem, rather than "your" problem or "my" problem, and take collaborative action to solve it. We used the Linguistic Inquiry Word Count automatic text analysis program to tabulate first-person pronoun use by both partners from transcripts of a pretreatment marital interaction task and later intervention sessions. Results indicated that pretreatment we-talk by the patient's spouse predicted whether the patient remained abstinent 12 months after quitting, and residualized change in we-talk by both partners during the course of intervention (controlling for baseline levels) predicted cessation outcomes as well. These findings add to evidence regarding the prognostic significance of partner we-talk for patient health and provide preliminary documentation of communal coping as a possible mechanism of change in couple-focused intervention.

This study examines whether 388 adolescents’ digital technology use is associated with mental-health symptoms during early adolescence to midadolescence. Adolescents completed an initial Time 1 (T1) assessment in 2015, followed by a 14-day ecological momentary assessment (EMA) via mobile phone in 2016–2017 that yielded 13,017 total observations over 5,270 study days. Adolescents’ T1 technology use did not predict later mental-health symptoms. Adolescents’ reported mental health was also not worse on days when they reported spending more versus less time on technology. Little was found to support daily quadratic associations (whereby adolescent mental health was worse on days with little or excessive use). Adolescents at higher risk for mental-health problems also exhibited no signs of increased risk for mental-health problems on higher technology use days. Findings from this EMA study do not support the narrative that young adolescents’ digital technology usage is associated with elevated mental-health symptoms.

Neighborhood Latino ethnic concentration, above and beyond or in combination with mothers' and fathers' ethnic socialization, may have beneficial implications for minority adolescents' ethnic attitude and identity development. These hypotheses, along with two competing hypotheses, were tested prospectively (from x¯age = 12.79-15.83 years) in a sample of 733 Mexican-origin adolescents. Neighborhood ethnic concentration had beneficial implications for ethnic identity processes (i.e., ethnic exploration and perceived peer discrimination) but not for ethnic attitudes. For Mexico-born adolescents, high maternal ethnic socialization compensated for living in neighborhoods low on ethnic concentration. Findings are discussed vis-à-vis the ways in which they address major gaps in the neighborhood effects literature and the ethnic and racial identity development literature.

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