Randomized controlled trials in lower-income countries have demonstrated ways to increase learning, in specific settings. This study uses a large-scale, nationwide RCT in Ghana to show the external validity of four school-based interventions inspired by other RCTs. Even though the government implemented the programs within existing systems,…

To experiment with the possible privatisation of its primary education system, Liberia initiated the Partnership Schools of Liberia (PSL), which turned over the management of 93 public schools to eight private contractors. A randomised controlled trial (RCT) study was initiated comparing the PSL schools with matched public schools and the results…

To what degree can multilingual students profit from bilingual teaching approaches, even when they lack experience in the academic or technical register in their home languages? This study explores this research question in a mixed methods design for a German/Turkish bilingual intervention aimed at fostering conceptual understanding of fractions…

Background: Differing results regarding articulation skills in young children with cleft palate (CP) have been reported and often interpreted as a consequence of different surgical protocols. Aims: To assess the influence of different timing of hard palate closure in a two-stage procedure on articulation skills in 3-year-olds born with unilateral…

The "'Literacy Octopus' Dissemination Trial" aimed to test the impact on pupil outcomes of disseminating research summaries and evidence-based resources to schools. The materials aimed to support teaching and learning of Key Stage 2 literacy and were created by leading organisations with experience of engaging schools in evidence use.…

Background: Educational interventions are often complex, and their outcomes could be due to factors not focused on in the impact evaluation. Therefore, educational evaluations using a randomised control trial (RCT) design approach need to go beyond obtaining the impact results alone. Purpose: Process evaluation is embedded in the evaluation design…

The present study examined the effectiveness of the oral history approach with respect to students' historical competence. A total of 35 ninth-grade classes (N = 900) in Germany were randomly assigned to one of four conditions--live, video, text, or a (nontreated) control group--in a pretest, posttest, and follow-up design. Comparing the three…

This report presents the findings from an efficacy trial and process evaluation of the Parent Engagement Programme (PEP). The PEP was a school-level intervention designed to improve pupil outcomes by engaging parents in their children's learning. The programme was developed collaboratively by research teams from the University of Bristol and…

The Magic Breakfast project provided 106 schools with support and resources to offer a free, universal, before-school breakfast club, including to all Year 2 and Year 6 pupils. The aim of the project was to improve attainment outcomes by increasing the number of children who ate a healthy breakfast. The schools in the project were schools in…

The Evidence-based Literacy Support-"Literacy Octopus" Trial tested a range of dissemination interventions and resources, all of which aimed to engage schools in using evidence-based materials to improve teaching and learning in Key Stage 2 literacy. Four delivery partners provided interventions. These included light-touch,…

Success for All (SfA) is a whole-school approach to improving literacy in primary schools. Teachers receive training in areas including group learning strategies, phonics, and assessment, and are provided with structured daily lesson plans and teaching materials. There is also support for school leadership in areas such as data management, ability…

The authors evaluated the effects of P-SELL, a science curricular and professional development intervention for fifth-grade students with a focus on English language learners (ELLs). Using a randomized controlled trial design with 33 treatment and 33 control schools across three school districts in one state, we found significant and meaningfully…

Children from low-income families are at risk of learning outcome difficulties, particularly in literacy. Various studies link poor literacy results with performance later in primary and secondary school, and suggest that poverty, literacy skills and weak instructional methods combine to drastically limit the educational opportunities for many…