While there has never been a greater demand for STEM education, the U.S. is still struggling to define and implement this type of instruction. Identifying innovative and effective ways of improving STEM education in the K-12 environment is vital to the U.S. to remain economically viable on a global level. The multidisciplinary aspect of…

School recess scholars have called for more research into collective relations between social, personal, and physical factors on students' engagement and enjoyment of recess. Overall and by gender, this study serves to investigate a proposed model among 355 elementary school students from victimization to enjoyment through peer belonging, positive…

This study examined whether the degree to which bullying is normative in the classroom would moderate associations between "intra"- (cognitive and affective empathy, self-efficacy beliefs) and "inter"personal (popularity) factors and defending behavior. Participants were 6,708 third- to fifth-grade children (49% boys;…

Given the dearth of high-quality curriculum materials aligned with the new standards (NGSS and CCSS) and low student persistence in STEM fields, we sought to develop and test a STEM curriculum that would improve student knowledge, interest, and emotions. A cluster randomized control trial was conducted to assess the impact of Speedometry, a…

This study examined cognitive and affective empathy as predictors of proactive and reactive aggression. This study also explored whether levels of cognitive and affective empathy differed among children who use proactive and reactive aggression. Cognitive and affective empathy were measured by the Basic Empathy Scale (Jolliffe & Farrington,…

Past studies have investigated relationships between peer acceptance and peer-rated social behaviors. However, relatively little is known about the manner in which indices of well-being such as optimism and positive affect may predict peer acceptance above and beyond peer ratings of antisocial and prosocial behaviors. Early adolescence--roughly…

The impact of school-based Tae Kwon Do training on self-regulatory abilities was examined. A self-regulation framework including three domains (cognitive, affective, and physical) was presented. Children (N = 207) from kindergarten through Grade 5 were randomly assigned by homeroom class to either the intervention (martial arts) group or a…

The present study examined the relationship between sub-clinical depressive symptoms and children's anticipated cognitive and behavioral reactions to two written vignettes depicting emotion-eliciting stressors (i.e., fight with one's best friend and failure at a roller blade contest). Participants (N = 244) ranging in age between 10 and 13 were…

In this study, 434 children and adolescents completed the Control-, Agency-, and Means-ends beliefs Interview (CAMI). Moreover, we asked for current mood-state and achievement-related affect after success and failure at school. There was no gender difference in achievement-related affective expression in children (9 and 10 years old), but there…

Seventy-six fourth-grade children and their parents participated in a study of the linkages among parental control and positive affect, children's display rule use, and children's social competence with peers. Using observational measures of parental behavior and children's display rule use, it was found that parental positive affect and control…