Self- and group orientations represent distinct ways of perceiving the relations between the world and the self and are relevant to adolescents' development. Most of the existing studies in this area are cross-sectional, providing little information about how self- and group orientations develop. This 3-year longitudinal study examined the…

The study explores whether physical activity (PA) in early adolescence limits the risk of internalizing and externalizing problems in youth with difficult temperaments, from low-income families, or exposed to impaired family functioning. Participants (N = 1312; 53% girls) were drawn from the Quebec Longitudinal Study of Child Development (QLSCD).…

Background: Evidence-based interventions are essential for school-aged children with intellectual disabilities to facilitate development and promote future independence. Methods: Using a PRISMA approach, systematic screening of five databases was undertaken. Original randomised controlled studies with psychosocial-behavioural interventions were…

This dissertation examines students' social-emotional experience with knowledge building pedagogy from the lenses of grit and growth mindset. The goal of this dissertation is to understand how interest, perseverance of effort and growth mindset oriented feedback engage students social emotionally in knowledge building to sustain and deepen their…

Excessive plate waste is generated in elementary school cafeterias. Adapting nutrition promotion strategies to target waste reduction and encouraging mindful and sustainable eating (MSE) are possible strategies to encourage students to reduce waste during school lunch. "Farm to Tray, Tray to Farm" is a 16-week intervention that aims to…

Early adolescence is a time of increased stress and risk for poorer psychosocial functioning, but few studies have explored the relationship between stress and psychosocial functioning in the context of teacher-student relationships during early adolescence. This study used a two-wave longitudinal design to investigate the unique and interactive…

Early adolescence is a time of increased stress and risk for poorer psychosocial functioning, but few studies have explored the relationship between stress and psychosocial functioning in the context of teacher-student relationships during early adolescence. This study used a two-wave longitudinal design to investigate the unique and interactive…

Deliberate practice and having a growth mindset have been hypothesized to increase school performance. But previous studies are few, have been limited to very short interventions, and on average resulted in small effect sizes on school performance. This study compared the attitudes, performance, and behavior of 130 7th-grade students taking part…

This research applied current thinking in the fields of positive education, positive youth development, and global education to a culturally-relevant, social-emotional learning curriculum. The Kenya Education Empowerment Project (KEEP) curriculum facilitated social-emotional learning through dialogically-based classroom lessons and opportunities…

Character education programming is gaining popularity in America's schools as a way to raise an intelligent and caring generation of students. However, many schools fail to allocate time, money, and resources to such initiatives. The present study examined the impact of an ethical sensitivity intervention in a religiously affiliated independent…

Purpose: The purpose of this article was to systematically review studies that explored associations between specific curricular models, as an essential component of physical education, and to assess how the student outcomes identified in the models aligned with the national standards. Methods: Using the PRISMA guidelines to identify, screen,…

Organized afterschool activities present great potential to support individuals' positive development. Despite the general findings on the positive role of organized afterschool activities on individual development, existing studies have been limited in multiple ways. They have often focused on the quantity of participation or the amount of time…

Recent research indicates that the development of antisocial behavior among students is influenced by the behavioral characteristics of their classmates. However, not all peers in a given class may exert the same influence. Thus, we examined the extent to which individual development is predicted by the perceived proportion of all students with…

A new leadership model is needed in all organizations. In response, The Affect-Centered Transformational Leadership Model came about. The new model resulted from a doctoral student's participation in a leadership course, and continued dialogue with its professor. Ultimately, the new model reached the stage of needing to be operationalized. A…

The effects of a school-based social-emotional and character development program, "Positive Action," on the developmental trajectory of character development was evaluated using data from three randomized trials. Results come from (1) 4-years of data from elementary children in 20 Hawai'i schools, (2) 3-years of data from elementary…