The development of prosocial behaviors during the preschool years is essential for children's positive interactions with peers in school and other social situations. Although there is some evidence of genetic influences on prosocial behaviors, very little is known about how genes and environment, independently and in concert, affect prosocial…

School principals' education and professional experience shape their approach to school leadership and how successful their students will be. However, it is not clear from existing research which aspects of principal education and professional experience are related to student outcomes and principal retention. This dissertation explores aspects of…

Purpose: To be effective, evidence-based programs should be delivered as prescribed. This suggests that adaptations that deviate from intervention goals may limit a program's effectiveness. This study aims to examine the impact that number and quality of adaptations have on substance use outcomes. Design/methodology/approach: The authors examined…