The measurement of treatment integrity is critical to evaluate the efficacy and effectiveness of evidence-based programs (EBPs) designed to improve the developmental outcomes of young children at risk of emotional/behavioral disorders. Unfortunately, the science of treatment integrity measurement lags behind the development and evaluation of EBP…

Since its publication in 2012, "The Behavior Code: A Practical Guide to Understanding and Teaching the Most Challenging Students" has helped countless classroom teachers, special educators, and others implement an effective, new approach to teaching focused on skill-building, practical interventions, and purposeful, positive interactions…

The purpose of this research is to examine the effect of the "Incredible Years (IY) Child Training Program" on behavioral problems, social competence, and social problem-solving skills. The research was performed using a pretest-posttest experimental design with a control group to determine the effects of the IY program on the level of…

Students with AD/HD experience difficulty concentrating in the classroom due to unwanted behaviours. This article focuses on what six Australian adolescent boys have to say about teacher and teaching factors that enabled them to regain focus (if distracted) and concentrate on classroom learning. A multiple, instrumental case-study was used to…

What are the long-term effects of justice and injustice in school? This longitudinal study examined the bidirectional relationships of classroom justice with students' behavioral problems, well-being, and joy of learning. Using systematic observation on the single-child level, teachers and external observers made high and low inference justice…

Research has consistently linked social-emotional learning to important educational and life outcomes. Early elementary represents an opportune developmental period to proactively support children to acquire social-emotional skills that enable academic success. Using data from a large scale randomized controlled trial, the purpose of this study…

Emotion dysregulation is associated with attention deficit/hyperactivity disorder (ADHD) and confers risk for behavior problems and functional impairment; however, there is little guidance on best practices for measurement in adolescents. We developed a parent-report version of the Difficulties in Emotion Regulation Scale (DERS-P)). Evidence of…

This study built on research on sibling influences to assess potential bidirectional effects of older and younger siblings' risky behaviors on one another's risky behaviors; our longitudinal design allowed us to test these effects when siblings were at about the same chronological age, at different points in time. We also tested whether the…

Background: There is sparse literature about problem behaviour in young children with Williams syndrome (WS) and little consideration of the perspectives of multiple respondents. Methods: Problem behaviour of 35 children with WS ages 2 to 6 was examined based on both parent and teacher report using the Achenbach preschool forms. Results: The most…

This study identified trajectories of depressive symptoms among mothers of children with or without intellectual disability longitudinally across eight time points. Results of fitting a linear growth model to the data from child ages 3-9 indicated that child behavior problems, negative financial impact, and low dispositional optimism all…

The present investigation explored long-term relationships of behavioral symptoms of adolescents and adults with developmental disabilities with the mental health of their mothers. Fragile X premutation carrier mothers of an adolescent or adult child with fragile X syndrome (n = 95), and mothers of a grown child with autism (n = 213) were…

In this retrospective commentary on "Acceptability of Behavioral Interventions Used in Classrooms: The Influence of Amount of Teacher Time, Severity of Behavior Problem, and Type of Intervention," I first examine the concept of social validity and related measurement challenges per Wolf's concerns about consumers' subjective reactions to…

Questionnaires that include items eliciting count responses are becoming increasingly common in psychology. This study proposes methodological techniques to overcome some of the challenges associated with analyzing multivariate item response data that exhibit zero inflation, maximum inflation, and heaping at preferred digits. The modeling…

Background: Self-injuring acts are among the most dramatic behaviours exhibited by human beings. There is no known single cause and there is no universally agreed upon treatment. Sophisticated sequential and temporal analysis of behaviour has provided alternative descriptions of self-injury that provide new insights into its initiation and…

The current study used developmental trajectories to examine the relationship between internalising and externalising behaviours and victimisation over the transition period from primary to secondary school. Data were collected using a self-completion questionnaire four times over 3 years from 3,459 students aged 11-14 years. Students were tracked…