Adolescent suicide is a critical problem in the United States. Identification and reporting of warning signs is a suicide prevention practice that is particularly important in schools, where adolescents spend the majority of their time. Though it is necessary to consider both risk factors and warning signs when evaluating an individual's suicide…

Guided by the life course perspective, this study investigated the developmental antecedents of contact, closeness/warmth, and negativity in young adults' relationships with their parents. Taking the developmental systems approach, we considered interindividual differences in not only initial levels of parenting quality in early adolescence (Grade…

Antisocial peer behavior and low parental knowledge of adolescents' activities are key interpersonal risk factors for adolescent substance use. However, how the magnitude of associations between these risk factors and substance use may vary across adolescence remains less well understood. The present study examined the age-varying associations of…

The COVID-19 virus brought on a public health emergency that massively disrupted school systems and learning nationwide. During the 2020-2021 school year, many local education agencies (LEAs) in Pennsylvania and other states adopted remote learning to help slow the virus's spread. However, remote learning came with challenges for students,…

This study describes the process of defining a hypothetical learning progression (LP) for astronomy around the big idea of "Solar System formation." At the most sophisticated level, students can explain how the formation process led to the current Solar System by considering how the planets formed from the collapse of a rotating cloud of…

Schools have gone through educational reforms having various focuses on curriculum changes, consolidation, open classrooms, mastery learning, decentralization, shared decisionmaking, legislative mandates and controls, high expectations, integrated thematic instruction, professional development, technology integration, and standards with…