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The increased use of smartphones among adolescents has highlighted the need to distinguish between problematic and non-problematic smartphone use. To date, there are a lack of short, easy-to-use, and valid psychometric tools to assess smartphone addiction. The primary aim of the present study was to conduct the first psychometric assessment and evaluation of the Smartphone Application-Based Addiction Scale (SABAS) among English-speaking adolescents. Participants were 1175 students recruited from across four different high schools in New Zealand, of which 1031 completed all questions and were used in the final analyses. Several psychometric tests were conducted to ascertain reliability and validity. The SABAS had high internal consistency. Consistent with earlier validation studies, the SABAS displayed weak-moderate, positive relationships with symptoms of depression (PHQ-2), anxiety (GAD-2), and sleep quality. Overall, the SABAS is a sound, unidimensional scale with robust psychometric properties and is a short and easy-to-use measure that can be used confidently among English-speaking adolescents.

University students globally are consistently identified as a vulnerable group for mental distress and suicide. Despite this, students report low engagement in help-seeking behaviours. This series of studies aimed to assess barriers to help-seeking for students and the impact of an intervention that sought to increase support-seeking intentions. In Study 1, 373 undergraduate psychology students completed items related to depression, anxiety, suicidal ideation, stigma, and help-seeking intentions. In Study 2, 133 undergraduate psychology students were randomly allocated into one of three intervention groups (control, infographic, video) and completed measures as used in Study 1. Despite experiencing clinically relevant symptoms and recent suicidal ideation, students in Study 1 tended to report low intentionality to seek help, citing perceptions that their distress was not serious enough or a desire to handle their issues independently. In Study 2, an infographic about different support services increased student’s intentions to access support services and reduced their perception that their issues were not serious enough. Overall, Aotearoa New Zealand students endorsed similar barriers to help-seeking as students in other countries. Importantly, we demonstrated that a simple infographic intervention reduced perceptions regarding these common barriers and may increase students’ knowledge about when to seek help.

As social media use has increased in prevalence, so have concerns that social media may be detrimental to mental health and wellbeing. The primary aim of the current study was to investigate whether limiting social media use leads to increases in wellbeing. A secondary aim was to assess whether sleep quality contributed to the hypothesized relationship between social media use and wellbeing. One hundred and thirty-two individuals participated in the current study, with half the participants limiting their use of Facebook, Instagram, and Snapchat for 1 week. Social media use was monitored by having participants email screen shots of their battery usage, which included information on the level of usage for Facebook, Instagram, and Snapchat. Relative to a control group that did not limit social media use, taking a break from social media led to a small improvement in wellbeing. This improvement, at least in part, appears to be due to changes in sleep quality.

The transition from high school to university is associated with increased alcohol use and harm. Web-based interventions (WBIs) and ecological momentary interventions (EMIs) are two methods that have had some success in reducing alcohol use among university students and may be particularly effective if implemented during the transition to university. The aim of the current study was to investigate the effectiveness of a combined WBI and EMI to reduce alcohol use among incoming university students.Incoming first-year students (n = 783, in 2018 and 2019) were randomized into either a WBI + EMI, WBI-only, or an assessment-only condition. All participants completed online questionnaires before university, after their first and second semester, and reported their alcohol use fortnightly throughout their first year. Those in the WBI + EMI and WBI conditions received online feedback about their drinking (i.e., the WBI) immediately following the pre-university survey. Those in the WBI + EMI were also sent eight EMI messages to their mobile phones during Orientation Week and six EMI messages across the academic year aimed at reducing alcohol harm.There were no significant differences between the conditions in Orientation Week drinking, academic year drinking (both "typical" semester or fortnightly drinking), or alcohol-related harms.A WBI + EMI intervention aimed at the transition to university did not reduce university students' alcohol use. The transition, however, continues to be a period of serious harm where students drink more than any other period.

Social networking site (SNS) use is common and speculation about the negative impact of SNS use on mental health and psychological well-being is a recurring theme in scientific debates. The evidence for this link, however, is inconclusive. The Fear of Missing Out (FoMO) may assist in understanding the mixed evidence, as individuals who experience FoMO are more driven to keep up with what is happening to avoid missing out. We used a 2-week daily diary study of 408 university students to measure the daily associations between SNS use and negative and positive affect and whether FoMO moderated these associations. Multi-level Bayesian regression analyses revealed that 1) greater SNS use was associated with reductions in successive positive affect, but not increases in negative affect and 2) FoMO moderated the influence of SNS use such that increases in successive negative affect occurred only in those individuals high in trait FoMO.

Despite a growing understanding of the triggers for suicidal thoughts and behavior, little is known about the mechanisms that prevent people from killing themselves. The goal of the present study was to use publicly available Reddit data to better understand the reasons that people give for not following through with a potentially lethal suicide attempt. Threads containing key terms (e.g., "kill yourself") within the subreddit /r/AskReddit were collected and all top posts from these threads were thematically coded. Across the posts collected, 11 different themes were identified; friends and family, curiosity and optimism about the future, spite, purpose, transience, hobbies, animals/pets, fear of survival, fear of pain, death and/or the afterlife, apathy/laziness, and intervention. Some additional themes were captured in an "other" category, and a twelfth theme, use of pharmaceutical drugs, was identified, but not discussed. These findings provide a broad overview about the proximal protective factors that directly stopped people from making a suicide attempt. They also illustrate the potential for Reddit as platform through which to better understand factors that may help to identify and support those in suicidal crisis. Such insight may help to inform intervention and prevention strategies for suicide and those in suicidal crisis.