When randomized control trials are not possible, quasi-experimental methods often represent the gold standard. One quasi-experimental method is difference-in-difference (DiD), which compares changes in outcomes before and after treatment across groups to estimate a causal effect. DiD researchers often use fairly exhaustive robustness checks to…

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…

Researchers have implemented inclusive research for over 30 years. This article describes how two research projects collaborated with researchers with disabilities and aligns the description with four attributes of inclusive research developed by a consensus of international experts with and without disabilities. The first project, the Person…

In this article, we examined educators' efficacy and burnout within Comprehensive, Integrated, Three-tiered (Ci3T) models of prevention, as implemented in 14 elementary schools in a Midwestern state. Participating schools completed a year-long training series to design their Ci3T plans and were in their second year of implementation as part of a…

We examine the effectiveness of a planning prompt intervention to reduce procrastination on online homework for college students. The intervention asked students to indicate their intention to earn small amounts of extra credit for completing assignments earlier and form a plan to realize their intentions. Students' learning behavior is measured…

Researchers commonly interpret effect sizes by applying benchmarks proposed by Cohen over a half century ago. However, effects that are small by Cohen's standards are large relative to the impacts of most field-based interventions. These benchmarks also fail to consider important differences in study features, program costs, and scalability. In…

This paper presents the results of a brief mixed-methods intervention which sought to modify the production of prominence-related features in L2 English by four native French-speaking university lecturers, in read-aloud speech. Selected parts of participants' productions were acoustically modified and then used as the model in a Listen-and-Repeat…

Metacognitive strategies are needed to solve complex problems such as mathematical modelling problems in groups in a goal-oriented and successful manner. In this paper, the results of an intervention study aiming at enhancing students metacognitive group strategies for modelling are presented. Students from 18 different classes (grade nine and…

This article reports on a pilot study aiming to examine a role-modelling character education project through an Aristotelian framework, by adopting a virtue-led approach. Aristotle famously believed virtues should be taught to children at a young age through habituation, which gradually develops into "phronesis"-guided virtuosity, and he…

The complex temporal associations among moral disengagement, moral emotions, and aggressive behavior were investigated within a short-term four-wave longitudinal study in a sample of early adolescents (at T1: N = 245; M[subscript age] = 12.16 years; SD = 0.85). Moral disengagement and aggressive behavior were investigated by validated self-report…

Findings from a research synthesis of the relationships between family needs and parent, family, and child functioning are reported. The synthesis included 31 studies conducted in 12 different countries. The studies were conducted between 1987 and 2021 and included 4,543 participants. Eight different family needs scales or adaptations of the…

Based on the interplay between achievement goals theory and social comparison theory, our study focused on how achievement goals relate to subjective well-being in the school context in Chinese adolescents. Specifically, we addressed a theoretical model that specified that academic social comparisons and self-esteem would serve as mediators in the…

School-based practitioners are often called upon to provide assessment and recommendations for struggling students. These assessments often open doors to specialised services or interventions and provide opportunities for students to build competencies in areas of need. However, these assessments often fail to highlight the abilities of these…

This commentary discusses the implication of child and adolescent development research for public policy in Latin America. As illustrated by the articles in this special issue, even though the research of child and adolescent development in Latin America is making significant progress, still more research is needed. Developmental research in the…

Positive development models shift focus for intervention from avoiding problems, deficits, or psychopathology to promoting skills, assets, and psychological well-being as the critical interests in development and intervention. The field can be characterized as multiple parallel lines of empirical inquiry from four frameworks: Social Competence,…