Anti-transgender school policies have proliferated in the United States from 2019 to 2024, impacting school climate for transgender and nonbinary learners. In this quantitative study, we examined differences in the experiences of school climate factors (e.g., safety, mattering, mental health outcomes, etc.) between male, female, and nonbinary high…

The "IDRA Newsletter" serves as a vehicle for communication with educators, school board members, decision-makers, parents, and the general public concerning the educational needs of all children across the United States. The focus of this issue is "Breaking Barriers to Learning." Contents include: (1) The Importance of…

Zero tolerance as an approach to school safety has been around for almost 3 decades. Despite widespread criticisms of zero tolerance policies, few empirical studies have investigated the relationship of zero tolerance with school safety. More generally, the Government Accountability Office report on school shootings noted the need for research on…

Bully victimization is associated with lower academic performance for individual students; however, less is known about the impact of bullying on the academic performance of the school as a whole. This study examined how retrospective administrator reports of both the prevalence of teasing and bullying (PTB) and the use of evidence-based bullying…

This quasi-experimental study examined the adoption of the Virginia Student Threat Assessment Guidelines in 23 high schools. After training, school administrators and other staff members demonstrated substantial increases in knowledge of threat assessment principles and decreased commitment to zero tolerance approaches. Schools using the…

To determine whether larger high schools have more student victimization than smaller schools, this study examined a statewide sample of approximately 7,431 ninth-grade students and 2,353 teachers in 290 Virginia high schools participating in the Virginia High School Safety Study. School size was distinguished from the proportion of students…

School shooting cases since the late 1990s have prompted school officials and legislators to develop and implement programs and measures that would prevent violence in school. Despite the number of explanations by the media, politicians, organizations, and researchers about the etiology of school shootings, we are not united in our understanding…

In this study we examined authoritative discipline theory, which posits that 2 complementary aspects of school climate--structure and support--are important for adolescents' safety in school. Using a statewide sample of over 7,300 ninth-grade students and 2,900 teachers randomly selected from 290 high schools, we showed, using hierarchical linear…

Threat assessment has been widely recommended as a violence prevention approach for schools, but there are few empirical studies of its use. This nonexperimental study of 280 Virginia public high schools compared 95 high schools using the Virginia threat assessment guidelines (Cornell & Sheras, 2006), 131 following other (i.e., locally…

Bullying incidents in schools are getting more attention since the Columbine High School shootings on April 20, 1999 in Littleton, Colorado. Many national and state policies have been enacted since that fateful day. In Virginia, legislation passed by the 1999 General Assembly (section 22.1-208.01) required local school boards to establish a…

In its 2003 report, School Survey on Crime and Safety, the National Center on Education Statistics (NCES) found that, during the 1999-2000 school year, 29% of schools reported having more difficulty with student bullying than with any other single discipline problem. A similar 2004 NCES report, Indicators of School Crime and Safety, found that, in…