Background: Breast cancer is one of the most important types of cancer among women worldwide and is a significant stressor in women's life that may affect functional health status. The present study was aimed to determine the effect of selected exercises program on pain, shoulder disability, and functional outcomes in women after breast cancer…

The purpose of this study is to study the performance of different methods (inverse probability weighting and estimation of informative bounds) to control for differential attrition by comparing the results of different methods using two datasets: an original dataset from Portland Public Schools (PPS) subject to high rates of differential…

The present study evaluated long-term effects of a home-based smoking prevention program targeting smoking-specific parenting in families with children with and without asthma. A total of 1398 non-smoking children ("mean age" 10.1) participated, of which 197 (14.1%) were diagnosed with asthma. Families were blinded to group assignment.…

Starting Strong in Kindergarten (Starting Strong) is a school-based indicated prevention targeting behavior problems, student-teacher relationships, and parent-school connectedness for children with or at risk for disruptive behavior problems during the transition to kindergarten. By use of a block-randomized, controlled trial to test program…

Background: Persons with intellectual disabilities (ID) experience a wide range of health problems. Research is needed on teaching persons with intellectual disabilities about their health to promote self-advocacy. This study used a RCT to evaluate a health knowledge training program for adults with intellectual disabilities and verbal skills.…

Experimental evaluations that involve the educational system usually involve a hierarchical structure (students are nested within classrooms that are nested within schools, etc.). Concerns about contamination, where research subjects receive certain features of an intervention intended for subjects in a different experimental group, have often led…

Background: The childcare environment offers a wide array of developmental opportunities for children. Providing children with a feeling of security to explore this environment is one of the most fundamental goals of childcare. Objective: In the current study the effectiveness of Video-feedback Intervention to promote Positive Parenting-Child Care…

This pilot study is a randomized controlled trial on the effects of relaxation on anxiety, self-esteem, and emotional regulation in adults with intellectual disabilities (ID) working in a center of supported employment in France. We studied 30 adults with mild or moderate ID who were split at random into a relaxation group (RG, 15 subjects), who…

The purpose of this study is to examine the impact of instructor-generated video lectures as means of increasing students' perceived teacher presence within the online classroom. Additionally, students' survey results were used to measure the differential value of teaching presence for instructor-generated, personalized versus non-personalized…

Improving children's attendance is a high priority for Head Start and other early childhood education programs serving low-income children. We conducted a randomized control trial in a major northern city to evaluate the impact of a low-cost intervention designed to promote parents' social capital as a potential influence on children's attendance…

This article describes the effects of an analysis-of-practice professional development (PD) program on elementary school students' (Grades 4-6) science outcomes. The study design was a cluster-randomized trial with an analysis sample of 77 schools, 144 teachers and 2,823 students. Forty-two schools were randomly assigned to treatment, (88.5 hours)…

Attrition occurs when members of the initial research sample are not part of the final analysis sample, such as due to missing data or leaving the study. Both the overall sample attrition and the differences in attrition between the groups can affect the statistical equivalence of the sample and create potential for bias. The WWC has given careful…

Background: Students of clinical psychology and medicine experience high levels of mental distress and low levels of life satisfaction. Using adaptive coping strategies can modify the negative effect of stressors on health. Mindfulness, it has been claimed, more adaptive coping with stress, yet few studies have investigated whether mindfulness…

We report on an effectiveness evaluation of the Youth Empowerment Solutions (YES) program. YES applies empowerment theory to an after-school program for middle school students. YES is an active learning curriculum designed to help youth gain confidence in themselves, think critically about their community, and work with adults to create positive…

Background: In England, there is a growing need to improve the lives of secondary school students who are defined as disadvantaged and to support these students in their attainment and attitudes to secondary school science. Purpose: This paper reports on a project designed to support students from disadvantaged backgrounds by pairing them with…