Recent methods have sought to improve precision in randomized controlled trials (RCTs) by utilizing data from large observational datasets for covariate adjustment. For example, consider an RCT aimed at evaluating a new algebra curriculum, in which a few dozen schools are randomly assigned to treatment (new curriculum) or control (standard…

Using structural equation modeling, we examined the relationship of Hispanicism on recent substance use and whether Americanism moderated the effect in a sample of 1,141 Hispanic adolescents. The Bicultural Involvement Questionnaire (BIQ) was used to determine the degree of individual comfort in both Hispanic (Hispanicism) and American…

The present study examined the effectiveness of the oral history approach with respect to students' historical competence. A total of 35 ninth-grade classes (N = 900) in Germany were randomly assigned to one of four conditions--live, video, text, or a (nontreated) control group--in a pretest, posttest, and follow-up design. Comparing the three…

The present study examined e-learning enjoyment to see if it could predict high school students' vocabulary learning through a digital video game. Furthermore, the difference between those who played and those who watched the game was assessed. Participants of the study were male, high school, EFL students (N = 136, age 12-18) randomly assigned to…

Empowerment has been established as an important factor in resilience in adolescence. It has also been deemed critical for youth with emotional and behavioral disorders to achieve successful outcomes across academic, social, and behavioral domains, especially during a major transition. There is currently one measure used to evaluate empowerment in…

Although American schools are required to meet civic education goals of preparing students to become active and informed citizens, high-quality civic opportunities (e.g. service learning and volunteering) are consistently less available to youth of color who are typically enrolled in schools located in high-poverty communities. The purpose of this…

Objective: To evaluate the effectiveness of 2 brief school-based interventions targeting the homework problems of adolescents with attention-deficit/hyperactivity disorder (ADHD)--the Homework, Organization, and Planning Skills (HOPS) intervention and the Completing Homework by Improving Efficiency and Focus (CHIEF) intervention, as implemented by…