This report presents the statistical theory underlying the "RCT-YES" software that estimates and reports impacts for RCTs for a wide range of designs used in social policy research. The report discusses a unified, non-parametric design-based approach for impact estimation using the building blocks of the Neyman-Rubin-Holland causal…

Mobile applications are popular among young children, yet there is a dearth of studies examining their impact on learning and development. A systematic review identified 19 studies reporting learning effects on children 2 to 5 years old. The number of children participating in experimental, quasi-experimental, or mixed-method studies was 862 and…

Two decades of research into early career researchers has highlighted the interaction of a constellation of influences in making sense of their experiences. Such research largely draws on either quantitative or qualitative traditions. While both traditions explore similar phenomena, research questions are often framed differently and use different…

This article describes and analyzes the collaborative design of a citizen science research project through co-creation. Three groups of secondary school students and a team of scientists conceived three experiments on human behavior and social capital in urban and public spaces. The study goal is to address how interdisciplinary work and attention…

In human research, studies of return of fear (ROF) phenomena, and reinstatement in particular, began only a decade ago and recently are more widely used, e.g., as outcome measures for fear/extinction memory manipulations (e.g., reconsolidation). As reinstatement research in humans is still in its infancy, providing an overview of its stability and…

Design research is strongly associated with the learning sciences community, and in the 2 decades since its conception it has become broadly accepted. Yet within and without the learning sciences there remains confusion about how to do design research, with most scholarship on the approach describing what it is rather than how to do it. This…

Suppose an education researcher wants to test the impact of a high school drop-out prevention intervention in which at-risk students attend classes to receive intensive summer school instruction. The district will allow the researcher to randomly assign students to the treatment classes or to the control group. Half of the students (the treatment…

The aim of this research is to determine the effects of various teaching methods and activities, which are used in environmental education lessons, on the environmental literacy level of classroom pre-service teachers. This study was carried out including the classroom pre-service teachers, who took the environmental education course in the…

Students with invisible disabilities such as mental illness or acquired brain injury (ABI) experience multiple barriers that reduce their likelihood of postsecondary course completion. The present study conducted a systematic search of research reporting interventions for students experiencing mental illness or ABI to participate in postsecondary…

This review describes a meta-analysis of findings from 50 controlled evaluations of intelligent computer tutoring systems. The median effect of intelligent tutoring in the 50 evaluations was to raise test scores 0.66 standard deviations over conventional levels, or from the 50th to the 75th percentile. However, the amount of improvement found in…

When cluster randomized experiments are analyzed as if units were independent, test statistics for treatment effects can be anticonservative. Hedges proposed a correction for such tests by scaling them to control their Type I error rate. This article generalizes the Hedges correction from a posttest-only experimental design to more common designs…

The purpose of this study was to investigate how somatic (mind-body) instruction facilitated participants' understanding of embodiment and affected their singing performance. Using an integrated case study and action research design, I, as participant-researcher, led movement lessons based on the Feldenkrais Method® that were intended to elicit a…

Strategic management is a critical component for the effective performance of an organization. Many successful organizations have consistently performed better than their competitors mainly because they have implemented strategic management. The Ministry of Education (MOE) in the Republic of Kenya expects that all secondary schools put in place…

We used Q methodology, a form of factor analysis, to explore and establish correlations across the perceptions of key stakeholders (i.e., deans, faculty members, doctoral students) about how doctoral programs in educational leadership engage in work with diverse communities. Four distinct viewpoints emerged suggesting the ongoing need to: develop…

In this article, we critically review the work of Morgan et al. (2015) and offer Disability Studies in Education (DSE) as an alternative conceptualization to traditional research within special education. We first unpack many of Morgan et al.'s (2015) assumptions, which are grounded in deficit discourses about children, family structures, economic…