Purpose: The purposes of the study were to examine the longitudinal changes of team cohesion within a Sport Education season among female students and to identify facilitators and barriers underlying cohesion development. Method: A longitudinal, concurrent, mixed methods design was employed. Students from sixth to eighth grades (all girls; n = 55)…

Polysubstance use is related to elevated risk for adverse outcomes but remains understudied among early adolescents. This study focused on a cross-sectional (N = 1568) primarily Black (79%) sample of eighth grade students living in urban communities (Mean age = 13.8, SD = 0.68) to identify subgroups based on adolescents' reports of lifetime and…

Positive feelings are essential for students' well-being and are associated with their academic performance and long-term development. While prior studies have revealed relationships between certain events (e.g., activities and social interactions) and student feelings, little attention was paid to the influence of event durations. In order to…

Increasing research has indicated associations between popularity goal and adolescents' social functioning. However, little is known about the processes intervening and moderating these associations. We examined whether popularity status insecurity explained the longitudinal associations of popularity goal with depression and social behavior among…

Engaging parents in school health examinations can promote adolescents' well-being. We examined parents' participation in universal school health examinations in Finland reported by adolescents in school surveys (14 to 16-year-olds, N = 58,232). Further we studied variation between service providers and schools, and student and school-level…

This essay explores a student teacher's experience teaching an identity-themed poetry unit to a Year 9 class at an all-boys comprehensive school through the lens of one student's writing. Investigating an intimate poem, produced at the end of a difficult lesson, reveals the importance of allowing students the space to bring their individual…

Youth with greater levels of narcissism face a wide array of difficulties in interactions with others. However, there exists a curious lack of research on their close relationships, such as friendships. In this study, we examined associations between narcissism and friendship features over time. Participants were 261 eighth and ninth graders (112…

The objective of the study was to examine how distinct psychopathic traits, including callous-unemotional (CU) traits, impulsivity and narcissism, as well as family, school and friend social support are longitudinally associated with cyberbullying and cyber-victimization. Associations were investigated by employing a four-year longitudinal design…

The proportion of women in Japanese higher education has gradually increased, but men still dominate in majors such as science and engineering. As a background to this gender segregation, some survey results show that even before entering high school, there is a tendency for boys to evaluate themselves as the "science type" and girls as…

An emerging body of research documents a relationship between sleep quantity and delinquency during adolescence. Absent from this line of research, however, is an evaluation of whether the associations between sleep duration and different forms of delinquency vary across periods of adolescence and sex. The current study aimed to address this gap…

Scientists are often described as smart and logical thinkers but lacking in the so-called "soft skills." Well-known TV series such as "The Big Bang Theory" and "Breaking Bad" have also shaped these stereotypical ideas in society. In the present study, a total of 1013 students in grades 8 and 11 were asked about…

This quantitative study is primarily intended to examine whether district level performance results from Grade 8 ELA state assessments can help to predict future passing rates on AP exams. The participants for the study are all 218 K-12 school districts in New Jersey, all of which generated results across score levels and passing rates for PARCC…

High-achieving minority students have fewer friends than their majority counterparts. Exploring patterns of friendship formation in the Add Health data, we find strong racial homophily in friendship formations as well as strong achievement homophily within race. However, we find that achievement matters less in cross-racial friendships. As a…

Differential Item Function (DIF) analysis is commonly employed to examine potential bias produced by a test item. Since its introduction DIF analyses have focused on potential bias related to broad categories of oppression, including gender, racial stratification, economic class, and ableness. More recently, efforts to examine the effects of…

Youth participation in community-based, structured out-of-school time programs (OST) has been found to promote positive developmental outcomes by providing youth with resources to build interpersonal relationships and essential life skills. The increasing prevalence and multiplicity of youth participation in these activities leads us to expand the…