This study reports on the initial development and validation of the Student Subjective Wellbeing Questionnaire (SSWQ) with a sample of 1,002 students in Grades 6-8. The SSWQ is a 16-item self-report instrument for assessing youths' subjective wellbeing at school, which is operationalized via 4 subscales measuring school connectedness, academic…

This study tested moderators of the theory of planned behavior (TPB) based on geographical region, gender, race, and income among adolescents in an exercise context using multigroup path analyses. Participants were eighth- and ninth-grade students from Louisiana (LA; N = 448, M[subscript age] = 14.37 years) and Pennsylvania (PA; N = 681,…

The study examined the role of motivation in students' performance and engagement in elementary and middle school physical education. Cross-lagged relationships between performance and engagement were investigated across Grades 6-9. A total of 763 (365 girls, 398 boys) Finnish school students (11- to 12-year old) were followed across three years.…

The relations between adolescents' habitual usage of media violence and their tendency to engage in aggressive and prosocial behavior in a school setting were examined in a cross-sectional study with 1688 7th and 8th graders in Germany who completed measures of violent media exposure and normative acceptance of aggression. For each participant,…

Citizen science programs are joint efforts between hobbyists and professional scientists designed to collect data to support scientific research. Through these programs, biologists study species population trends while citizen scientists improve their content knowledge and science skills. The purpose of the present mixed method quasi-experimental…

The purpose of the current study was to extend the research on number sense to the middle school level and to simultaneously consider socioemotional elements related to the construct at this developmental stage. Its genesis was initially rooted in an ongoing and dramatic emphasis by U.S. policymakers, researchers, and educators on improving…

The authors conducted a multiple group path analysis examining gender differences in relations among career decision-making self-efficacy (CDMSE), career decision-making outcome expectations (CDMOE), and career decision-making intentions-goals (CDMIG), as well as linkages between these three sociocognitive variables and vocational identity status…

This study examined whether a transactional interpersonal life stress model helps to explain the continuity in depression over time in girls. Youth (86 girls, 81 boys; M age = 12.41, SD = 1.19) and their caregivers participated in a three-wave longitudinal study. Depression and episodic life stress were assessed with semistructured interviews.…

The current study investigated the gender differences of gifted adolescents' math/verbal self-concept and math/verbal ability by examining the Internal/External Frame of Reference Model (I/E model; Marsh, 1986). The sample consisted of 181 gifted adolescents, ranging in age from 12 to 16 years old. Gifted adolescents' math/verbal ability was…