Single-Session Intervention Targeting Self-Injurious Behavior in Adolescents

Participants (aged 13-16) will be randomized to: (1) an online, active control group program encouraging feelings disclosure (i.e. supportive therapy single session intervention \[SSI\]), or (2) an online program targeting nonsuicidal self-injury (NSSI; i.e. Project "SAVE"-Stop Adolescent Violence Everywhere-SSI). Investigators will test whether SAVE results in significantly greater: 1. Reductions in NSSI 3 months post-treatment \[primary outcome\] 2. Reductions in self-reported likelihood of future NSSI immediately post-treatment \[secondary outcome\] 3. Reduction in suicide ideation frequency 3 months post-treatment \[secondary outcome\]

Most mental health problems emerge by age 14, often leading to chronic impairments and adverse impacts for individuals, families, and societies. Similarly, suicidal thoughts and behaviors are relatively rare during childhood but increase significantly during the transition to adolescence. Self-injurious thoughts and behaviors (SITBs), which include suicidal thoughts and behaviors and nonsuicidal self-injury (NSSI; intentional self-harm enacted without suicidal intent), are among the best predictors of future suicidal thoughts and attempts in the current state of literature on the topic. There is also significant escalation from suicidal thoughts to suicidal behaviors during this developmental period. Most youth who transition from suicidal thoughts to suicidal behaviors will do so within 1-2 years after the onset of suicide ideation, which tends to begin in adolescents. Taken together, adolescence is a key developmental period for effective depression and suicide intervention and prevention. The goal of these studies is to test Single Session Interventions (SSIs) (defined below) that are designed to boost coping and resilience in adolescents. The investigators hope that this research will be valuable in ensuring that these SSIs are accessible to more adolescents. Despite significant strides in the development of psychosocial treatments for youth mental health problems, up to 80% of youth in the United States with mental health needs receive no services at all. Even when services are accessed, the definition of "treatment" is incredibly broad, with evidence-based interventions being the exception, not the rule. More typically, "treatment" may involve a single, unstructured contact with a medical doctor, counselor, emergency hotline, religious leader, or other health professional (e.g., occupational therapist), the benefits of which are unknown. This reality poses a critical challenge to the field of clinical intervention science-one that has been articulated many times before. Eight years ago, Kazdin and Blase (2011) called for a "rebooting" of psychotherapy research and practice, stating that "mental health professionals are not likely to reduce the prevalence, incidence, and burden of mental illness without a major shift in intervention research and clinical practice" via a portfolio of novel approaches to service delivery. Yet again, Kazdin (2019) asked us to reconsider how psychotherapy can and should be delivered: He argues that without removing requirements of a face-to-face format, an 'expert' with years of training, and a physical office, the need-to-access gap will likely stay stagnant. Indeed, Kazdin (2019) asserts the need to think about therapeutic action through an entirely new lens, asserting that "interventions may or may not rely on the psychological treatments that continue to dominate research." Any action-focused path to reducing the need-to-access gap will require moving beyond the dominant settings, formats, and systems that have constrained intervention delivery to date. Indeed, as Chorpita (2019) asserts, "it may well be time we move past thinking about 'treatments' as our only form of solutions" (p. 475), with "treatments" referencing the dominant design of current psychosocial therapies: weekly, clinician-delivered interventions in brick-and mortar clinical settings, which are too often inaccessible to those they are designed to serve. Brief, online interventions: Even among youths who do access services, treatment is often brief: U.S. youths who begin therapy attend an average of \~4 sessions, and the modal number of sessions attended is one. This creates a need to quantify and capitalize on what can be accomplished, given appropriate targeting and structure, in a short period of time. Single-session interventions (SSIs) have been found to benefit youth and help reduce depression symptoms. SSIs are brief and could be easily accessed online, thus, potentially limiting barriers to accessing treatment. Therefore, SSIs could markedly increase the capacity to address teen mental illness and SITBs in a cost-effective manner (Barak \& Grohol, 2011). Indeed, SSIs can successfully reduce mental health problems: In a meta-analysis of 50 randomized trials including 10,508 youth participants (ages 4-19) SSIs significantly reduced psychopathology of multiple types (mean g = 0.32), including self-administered SSIs-those that did not involve a therapist (e.g., online SSIs; mean g = 0.32). To date, two types of SSIs have been shown to reduce depressive symptoms in adolescents and/or young adults. However, only one of these two SSIs is designed for online administration (the other is administered by a therapist and therefore more challenging to disseminate). In the present series of studies, the investigators aim to test the efficacy of SSIs self-administered online to reduce depression and SITBs in a large sample of teenagers. The Current Research The goal of this study is to test single session interventions (SSIs) that are designed to boost coping and resilience in adolescents. Specifically, participants (aged 13-16) will be randomized to: (1) an online, active control group program encouraging feelings disclosure (i.e. supportive therapy SSI), or (2) an online program targeting nonsuicidal self-injurious behavior (i.e. Project "SAVE"-Stop Adolescent Violence Everywhere-SSI). The investigators will test whether participants randomized to the SAVE SSI report: 1. Lower self-reported likelihood of future NSSI immediately post-intervention 2. Lower self-reported frequency of non-suicidal self-injury (in the past 3 months) at 3 month follow-up 3. Lower self-reported frequency of suicide ideation (in the past 3 months) at 3 month follow-up