The effectiveness of a peer-mentoring program was examined at a university in California. Previous studies suggest university peer mentoring might increase students' feelings of engagement, which can contribute to their retention. Pretest and posttest data were collected from 304 freshmen (mentored and nonmentored) during the fall of 2012 in a…

The present article considers a fundamental question in evaluation research: "By how much do program effects vary across sites?" The article first presents a theoretical model of cross-site impact variation and a related estimation model with a random treatment coefficient and fixed site-specific intercepts. This approach eliminates…

The Effects of the Elevate Math summer program on math achievement and algebra readiness: This randomized trial examined the effects of the Elevate Math summer program on math achievement and algebra readiness, as well as math interest and self-efficacy, among rising 8th grade students in California's Silicon Valley. The Elevate Math summer math…

Background: Evaluations of substance use screening and brief intervention (SBI) curricula typically focus on learner attitudes and knowledge, although effects on clinical skills are of greater interest and utility. Moreover, these curricula often require large amounts of training time and teaching resources. This study examined whether a 3-hour…

The 6-yr degree-completion rate of undergraduate science, technology, engineering, and mathematics (STEM) majors at U.S. colleges and universities is less than 40%. Persistence among women and underrepresented minorities (URMs), including African-American, Latino/a, Native American, and Pacific Islander students, is even more troubling, as these…

We describe the development and initial evaluation of the efficacy of "We Have Skills!" (WHS), a video-based social skills instructional program for early elementary school students. The components of WHS were designed to be scientifically sound, maximally useful to elementary school teachers, and effective in increasing students' social…

The MIND Research Institute contracted with the Evaluation Research Program at WestEd to conduct an independent assessment of mathematics outcomes in elementary school grades across California that were provided with the ST Math program. Spatial-Temporal (ST) Math is a game-based instructional software designed to boost K-5 and secondary-level…

Introduction: Group-randomized trials (GRTs) are one of the most rigorous methods for evaluating the effectiveness of group-based health risk prevention programs. Efficiently designing GRTs with a sample size that is sufficient for meeting the trial's power and precision goals while not wasting resources exceeding them requires estimates of the…

One of the original purposes of student financial aid was to ensure fairer access to post-secondary education to those least able to afford it and to those traditionally underrepresented. Various federal and state programs were put in place to achieve this goal, including the federal Pell Grant and state aid programs. Yet policymakers and…

The Schools to Watch: School Transformation Network Project is a whole school reform model designed to improve the educational practices, experiences, and outcomes of low-performing middle-grades schools. Developed by the National Forum to Accelerate Middle-Grades Reform, the four-year project was funded in 2010 by a U.S. Department of Education…

The expense of attending college is one factor that may explain why low-income students often drop out of school. In California, despite generous state aid and relatively low fees at community colleges, many low-income students still have substantial college-related costs that they cannot cover. To compound matters, federal support for students…

The number of obese children has nearly tripled in the past 30 years. Research has identified a clear connection between parental income, education, ethnicity, and the risk for obesity. Recent research demonstrates that parenting style may also impact the ability to establish healthy eating environments. This article reviews a program, currently…

Objective: Examine the impact of providing yogurt to women enrolled in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC). Design: Randomized, controlled intervention trial. Setting: Two California WIC local agency sites. Participants: 511 pregnant, breast-feeding, or postpartum women. Intervention: Substitution of…

The Learning Communities Demonstration is a national research project that is testing the effectiveness of learning communities in six community colleges across the United States: Merced College in California; The Community College of Baltimore County (CCBC) in Baltimore, Maryland; Hillsborough Community College in Tampa, Florida; Houston…

As part of MDRC's multisite Opening Doors demonstration, Chaffey College, a large community college in Southern California, ran two versions of a program that was designed to improve outcomes among students who are on probation. Both versions offered a "College Success" course, taught by a college counselor, which provided basic…