The American School Shooting Study (TASSS) is an ongoing mixed-method project funded by the National Institute of Justice to catalog US school shootings. It has amassed data based on open sources and other public materials dating back to 1990. This brief presents new insights from TASSS, diving deeper into the database's potential to examine the…

Background: There is a growing body of research focused on autistic individuals who present with aggressive behaviour. Aggressive behaviour has been found to occur more frequently in autism compared with other developmental disabilities or the general population. The most common types of aggressive behaviours are self-injurious behaviours,…

Social, emotional, and behavioral interventions are often complicated to implement in school settings. Empirical and practical evidence suggests that educators need support to implement interventions with treatment integrity or as intended. Treatment integrity is comprised of multiple dimensions that capture quantity of the intervention delivered,…

The Premack principle states that any Response A can reinforce any other Response B if the independent rate of A is greater than the independent rate of B (Premack, 1959). Applying the Premack principle involves arranging the environment to restrict access to certain responses based on relative probabilities of a set of given responses (Timberlake…

This report investigates the implementation of Positive Behavior Interventions and Supports (PBIS) during the COVID-19 pandemic and its effects on school discipline. It highlights the challenges faced by educators, including increased student problem behaviors due to disruptions in traditional schooling. The study evaluates how different tiers of…

Background: We aimed to identify key factors in implementing and adhering to positive behaviour support (PBS), provided by frontline staff, targeting challenging behaviours of people with intellectual disabilities living in residential group homes. Method: Using semi-structured interviews with 12 frontline staff members, we collected perspectives…

The interactions between sleep problems, autism symptoms and emotional and behavioural difficulties were explored using network analysis in 240 autistic children (mean age: 8.8 years, range 5-13 years) with moderate to severe sleep problems. Findings revealed a highly connected and interpretable network, with three separate clusters identified of…

Background: Within the same school class, it is usual to find children who differ in age by almost a full calendar year. Although associations between being relatively young and poor academic outcomes are well documented, and relatively consistent, the associations between being relatively young and psychosocial outcomes are less clearly…

The purpose of this descriptive study was to highlight the experiences of 11 child care providers whose classrooms included preschoolers who engaged in persistent challenging behavior, thus expanding the limited literature on this topic. This qualitative study included two interviews with each provider. The results center around the effect of…

Internalizing and externalizing problems are common targets for school mental health screening. Prior research supports the interpretation of scores from the Youth Internalizing Problems Screener (YIPS) and the Youth Externalizing Problems Screener (YEPS), which were developed separately yet intended as companion measures. We extended previous…

The purpose of this study was to examine the efficacy of the Family Check-Up initiated during kindergarten on teacher-report of children's emotional and behavior concerns in fourth grade. Participants were 57 primary caregivers, along with their children and teachers. Participants were randomized to a Family Check-Up condition or school-as-usual…

Paraprofessionals are often tasked with implementing behavior management strategies to support the complex needs of students with disruptive behavior disorders. This study examined reported use and effectiveness of common classroom behavior strategies from 86 paraprofessionals working in 36 elementary schools using a mixed method design. Data were…

This study investigated the role of anger expression and control in the relationships between mindfulness and romantic relationship quality. 237 emerging adults (167 females and 70 males) who had been in a relationship for at least three weeks (range = 3 weeks - 84 months) completed a set of questionnaires that assessed mindfulness, anger…

This dissertation explores the perceptions of administrators, teachers, and other school personnel regarding the effectiveness of restorative practices in addressing disciplinary infractions within school settings. Grounded in a phenological design approach, the study investigates lived experiences to understand how individuals perceive and engage…

Classroom intervention focusing on peer interaction persuades children to develop positive behaviour. Peer interaction plays a significant role in managing problem behaviour among adolescent children. It facilitates identifying weaknesses in children's justification for their problem behaviour. Thus, the study aimed to propose a classroom…