Multi-site randomized controlled trials (RCTs) provide unbiased estimates of the average impact in the study sample. However, their ability to accurately predict the impact for individual sites outside the study sample, to inform local policy decisions, is largely unknown. To extend prior research on this question, we analyzed six multi-site RCTs…

Passing through remedial and required math classes poses a significant barrier to success for many community college students. This study uses random assignment to investigate the impact of a "light-touch" intervention, where an individual visited math classes a few times during the semester, for a few minutes each time, to inform…

The specific neuropsychological and sensory profile found in persons with autism spectrum disorders complicate dental procedures and as a result of this, most are treated under general anesthesia or unnecessary sedation. The main goal of the present study was to evaluate the effectiveness of a short treatment and education of autistic and related…

Impact evaluations of school-based management (SBM) programs, or any other kind of program, are important because they can demonstrate whether or not the program has accomplished its objectives. Furthermore, these evaluations can identify ways to improve the design of the program. These evaluations can also make successful interventions…

The Carl D. Perkins Vocational and Applied Technology Education Amendments of 1998 extended support for "career guidance and academic counseling." A wide variety of such interventions are in existence. Since the No Child Left Behind Act of 2001 emphasizes evidence-based education, it is important to examine the research to determine the…