This five-year study focused on school processes that promoted the scaling-up of a high school academic literacy framework, Reading Apprenticeship, developed by WestEd's Strategic Literacy Initiative (SLI). Implementing an innovative strategy for scaling-up involving school-based cross-disciplinary teacher teams, SLI brought the framework to 274…

Increasingly, researchers are interested in questions regarding treatment-effect variation across partially or fully latent subgroups defined not by pretreatment characteristics but by postrandomization actions. One promising approach to address such questions is principal stratification. Under this framework, a researcher defines endogenous…

This meta-analysis is the first to provide a quantitative synthesis of empirical evaluations of mathematical intervention programs implemented in secondary schools for students with learning disabilities and mathematics difficulties. Included studies used a treatment-control group design. A total of 19 experimental and quasi-experimental studies…

Prevent-Teach-Reinforce for Young Children (PTR-YC) is a standardized model of positive behavior support designed to deliver individualized interventions for preschool-aged children with severe and persistent challenging behaviors. A randomized controlled trial was conducted to compare effects of PTR-YC with those of a "business as…

Aims: Examine intervention effects among mothers involved in a healthy eating randomized controlled trial. Furthermore, examine the mediating roles of individual and familial influences on observed outcomes. Methods: Between 2009 and 2011, 361 families were recruited; half were assigned to an 11-session community health worker-delivered…

Background: Obesity has been identified as a global epidemic that is associated with numerous comorbidities such as type 2 diabetes, hypertension, cancer, cardiovascular disease. We have investigated the effects of Watsu® therapy and Immersion on HRV parameters of obese male subjects. Methods and Results: Volunteer 34 obese subjects with BMI above…

The psychometric properties of the Kids Intervention Profile (KIP), a rating scale designed to measure academic intervention acceptability from the perspective of students, were examined as well as the influence of background factors on students' acceptability ratings. Data were extracted from 4 randomized controlled trials investigating the…

Background: The link between disorders of attachment and psychopathology is well documented. Consequently, a person's attachment style has a profound effect on his or her development and psychological well-being. At-risk populations such as adopted children are more prone to developing pervasive patterns of attachment, given the maternal…

Background: Exposure to solar ultra violet radiation (UVR) is a primary risk factor for skin cancer. Vacationers often fail to protect themselves from harmful UVR. Purpose: The study assessed the sun protection practices of resort guests in various outdoor leisure and recreation venues during warm-weather seasons. Method: Forty-one North American…

Simulation technology in healthcare education is continuously evolving but little is known about the effects of high fidelity simulation on student knowledge and skill retention or motivation. The purpose of this quantitative study was to use quasi-experimental design in a randomized controlled trial that compared the retention of knowledge and…

We demonstrate the effect of sample and trial size on statistical outcomes for single-subject analyses (SSA) and group analyses (GA) for a frequently studied performance activity and common intervention. Fifty strides of walking data collected in two blocks of 25 trials for two shoe conditions were analyzed for samples of five, eight, 10, and 12…

Choosing a career is one of the most important decisions that youth has to take but many young people find this a hard issue to engage with. Current career counselling practice does not appear very compelling or motivating to young people. Professional games could provide a more engaging and motivating way of acquiring professional awareness and…

Background: In contrast with most medical and pharmaceutical therapies, the optimal dosage for voice therapy or training is unknown. Aims: The aim of this study was to compare the effect of a short-term intensive voice training (IVT) with a longer-term traditional voice training (TVT) on the vocal quality and vocal capacities of vocally healthy…

Background: Identifying effective relapse prevention interventions is a vital step to help smokers maintain abstinence for the long term. Aims: The purpose of this study is to determine if providing recently quit smokers with self-directed relapse prevention booklets is effective at maintaining abstinence after intensive group smoking cessation…

Randomized experiments are generally considered to provide the strongest basis for causal inferences about cause and effect. Consequently randomized field trials have been increasingly used to evaluate the effects of education interventions, products, and services. Populations of interest in education are often hierarchically structured (such as…