Significant progress has been made toward a robust understanding of mental health, inclusive of both the absence of distress symptoms and the presence of positive health indicators (Greenspoon & Saklofske, 2001; Keyes, 2002). This conceptualization of mental health recognizes that the absence of distress alone is insufficient to assume wellbeing, and that it is necessary to focus on social-emotional strengths and assets (Scales, 1999). Dual-factor, or twocontinua, mental health models propose that positive (e.g., subjective well-being, social-emotional strengths) and negative (e.g., internalizing or externalizing distress) mental health indicators are related, yet distinct, constructs and that both need to be considered when assessing the mental health functioning of youths (Suldo & Shaffer, 2008). Concurrent with this expanded conceptualization of mental health, there has been an increased understanding of the need to proactively and universally assess youths' mental health in schools (Kamphaus, Reynolds, & Dever, 2014). Considering research highlighting the variety of negative educational and life outcomes associated with mental health problems (e.g., Bradley, Doolittle, & Bartolotta, 2008), universal school-based screening has been proposed as an essential first step toward identifying the mental health needs of students (Glover & Albers, 2007). Then, data-based decisions can be made to inform prevention, early intervention, and promotion efforts to relieve symptoms of distress and foster youths' thriving (Furlong, Dowdy, Carnazzo, Bovery, & Kim, 2014). Complete mental health screening is a contemporary approach to early identification that is aligned with dual-factor, expanded definitions of mental health (Furlong, You, Renshaw, Smith, & O'Malley, 2014). In this screening approach, symptoms of distress and indicators of strengths are both assessed to provide a comprehensive picture of youths' mental health functioning. When assessing youth's mental health functioning, it is essential to ask the students themselves about the positive and negative aspects of their life experiences (Furlong, Dowdy, et al., 2014). In addition, students are generally viewed as the best informants when measuring internalizing symptoms or their own perceptions or feelings (Dowdy & Kim, 2012). Complete mental health screening via student self-report provides a structured opportunity for students to provide information about their well-being. Approaches to complete mental health screening have generally involved coadministering multiple measures, with at least one measure focused on symptoms of distress and another focused on the presence of strength indicators 749871A EIXXX10.