Introduction: Vaping is common among young adults in the United States. The Transtheoretical Model (TTM) has demonstrated success in smoking cessation efforts; however, it has not been comprehensively applied to vaping cessation, and core TTM vaping measures have not been developed. Method: A cross-sectional survey including measures of stage of…

Bullying victimization is a school problem that warrants attention. While most work has focused on understanding bullies and victims, it is important that research explore how to promote bystander behavior during bullying as a mechanism to deter bullying in schools. Perceptions of the school climate may impact the likelihood of a student's…

Valid and reliable teacher ratings serve as the foundation for screening and assessment of youth with behavioral disorders and twin studies offer an opportunity to study those ratings. We conducted a meta-analysis of 15 empirical investigations of aggressive and rule-breaking behavior using teacher ratings in the context of a twin research design.…

Technology-enhanced learning supported by virtual learning environments (VLEs) facilitates tutors and students. VLE platforms contain a wealth of information that can be used to mine insight regarding students' learning behaviour and relationships between behaviour and academic performance, as well as to model data-driven decision-making. This…

Social support has been consistently identified as a protective factor for youth. Two competing models have been proposed regarding the role of social support: one in which social support provides benefits for all youth (General Benefits) and one where youth undergoing stress are especially protected (Stress-Buffering). While the General Benefits…

The article draws on the inclusion literature and the research related to human values to develop a conceptual model addressing conditions under which social inclusion in educational settings is likely to flourish. By synthesising the fields of inquiry concerned with research on kindness, forgiveness, and peaceableness, the article suggests these…

Background: Research on teaching and learning for science, technology, engineering, and mathematics (STEM) subjects has increased, and has demonstrated the importance of integrating interdisciplinary knowledge and skills. Our research model was based on the theory of planned behavior (TPB) and the data were analyzed by partial least…

Developmental researchers commonly utilize longitudinal data to decompose reciprocal and dynamic associations between repeatedly measured constructs to better understand the temporal precedence between constructs. Although the cross-lagged panel model (CLPM) is commonly used in developmental research, it has been criticized for its potential to…

Although cyber victimization has been suggested as a significant risk factor for the development of adolescents' depression, the underlying psychopathological process that mediates this relationship needs further exploration. Based on the psychological inflexibility model, this study aimed to examine cognitive fusion and experiential avoidance as…

Objective: The aim of this study is to investigate the mediating role of digital game addiction in the relationship between school belonging and psychological resilience of adolescents in middle school. Considering school belonging together with digital game addiction may help to better understand the risk and protective factors of psychological…

As a kind of indirect and coded language, metonymy not only inspires others but also helps one to reach goals set by cultural standards, society values, practices, and beliefs. Metonymy's rhetorical power comes from its ability to change meaning from a literal interpretation to an intended conceptual message, therefore enabling communication both…

In carrying out surveys involving sensitive characteristics, randomized response models have been considered among the best techniques since they provide the maximum privacy protection to the respondents and procure honest responses. Over the years, researchers have carried out studies on the estimation of proportions of the population possessing…

This dissertation includes three individual articles that explore the relationship between witnessing bullying and defending behavior among students who are bystanders of bullying. Chapter One provides the rationale and purpose of this dissertation and an overview of the three articles that comprise it. Chapter Two employed a cross-sectional…

There is considerable variability in the extent to which young people with developmental language disorder (DLD) experience mental health difficulties. What drives these individual differences remains unclear. In the current article, data from the Twin Early Development Study were used to investigate the genetic and environmental influences on…

Many interventions are characterized by repeated observations on the same individuals (e.g., baseline, mid-intervention, two to three post-intervention observations), which offer the opportunity to consider differences in how individuals vary over time. Effective interventions may not be limited to changing means, but instead may also include…