Background: People with severe to profound intellectual disabilities experience similar or higher levels of depression than those with more mild intellectual disabilities. Yet, there is an absence of evidence about how to adapt existing psychological therapies for this population. Method: A behavioural activation intervention (BeatIt) for people…

According to the "Diagnostic and Statistical Manual of Mental Disorders" (DSM-5; American Psychiatric Association, 2013), an substance use disorder (SUD) involves patterns of symptoms caused by using a substance that an individual continues taking despite its negative effects. Though there are 11 specific DSM-5 criteria for an SUD, they…

This is the protocol for a Campbell systematic review. The objectives are as follows. (1) Examine whether secondary and tertiary interventions delivered outside of the criminal justice system are effective at countering the cognitive and behavioural radicalisation of children and adolescents by synthesising evidence relating to relevant primary…

Assessments often fail to clearly answer whether a program "worked" or not. Here, I reflect on the broader purpose of assessment, and offer five questions to consider before undertaking an evaluation: Who are you trying to help? What is the intervention? How will you measure effects? Compared to What? and When will you measure effects?…

The Master's Loan Scheme in England was initially designed to support widening access to postgraduate education. However, the general increase in the average fees has posed a risk of reducing these schemes' effectiveness in promoting social mobility, especially for debt adverse students. We use a multidisciplinary framework to build a model of…

The purpose of this paper is to demonstrate and describe why alternating treatments design (ATD) researchers should consider employing a no-treatment series during the alternating treatments phase. To identify limitations associated with excluding this design element, we obtained examples of ATD studies published in five school psychology journals…

Physical activity (PA) promotion is an ideal intervention target for public health because it has the potential to help individuals feel better, sleep better, and perform daily tasks more easily, in addition to providing disease prevention benefits. There is strong evidence that individual-level theory-based behavioral interventions are effective…

As chronic absenteeism fails to ease from post-pandemic high levels, schools can turn to many reforms to promote school attendance. Commonly recommended strategies involve increasingly targeted and intensive tiers of interventions. Researcher Thomas S. Dee writes that the research base of many of these interventions is not strong. Schools facing…

A functional behavior assessment is an evidence-based process that identifies the function of challenging behaviors in order for educators to develop behavior intervention plans for students with disabilities. All behaviors are under stimulus control and research indicates that behaviors typically serve four functions: tangible, escape, attention,…

Group contingencies are evidence-based behavioral interventions frequently employed in educational settings. Group contingencies are composed of four distinct parameters: (1) a criterion, (2) a reward, (3) target students, and (4) target behaviors. Although it is common practice for teachers to reveal these parameters to students before the…

Questions about human behavior and diversity have captured the attention of scientists from a wide range of philosophical stances for centuries. While behavior analysts would argue that natural science is an enlightening perspective when applied to the understanding of the human condition, at times arguments within certain campaigns would prefer…

Crisis intervention programs have been developed to help educators be better prepared to prevent and respond to students in crisis. Schools spend millions of dollars for the use of these commercial programs, many of which are based on the principles of the Cycle of Acting Out Behavior (Colvin & Scott, 2015), which is considered the "gold…

Background: Youth-focused co-design, involving active collaboration between researchers, designers, clinicians and end users, is essential for enhancing the acceptability, feasibility and effectiveness of digital mental health interventions (DMHIs). However, most literature on co-design comes from high-income countries and offers limited…

The objectives of this review are to answer the following research questions: (1) What is the effect size of the effectiveness of interventions to improve livelihood outcomes for people with disabilities in low- and middle-income countries (LMICs), and what is the quality of the evidence base? (2) What works to improve livelihood outcomes for…

The objectives of this review are to answer the following research questions: (1) What is the nature of the interventions used to support education for people with disabilities? (2) What is the size and quality of the evidence base of the effectiveness of interventions to improve educational outcomes for people with disabilities in low- and…