In the 2016-2017 school year, the Liberian government launched Partnership Schools For Liberia (PSL), a pilot program in which the management of 93 primary schools was transferred to 8 private contractors. The pilot owed much to the importation of western policy models and was facilitated by the British organisation ARK and involved BIA, a private…

This paper describes the context, processes and issues experienced over 5 years in which a RCT was carried out to evaluate a programme for children aged 7-8 who were struggling with their reading. Its specific aim is to illuminate questions about the design of complex teaching approaches and their evaluation using an RCT. This covers the early…

The significance of a process evaluation for understanding randomised controlled trials (RCTs) of complex teaching interventions in a classroom setting is discussed in relation to the evaluation of the Integrated Group Reading (IGR) programme trial. This process evaluation is based on realist principles and draws on different data sources. The…

To plan cluster-randomized trials with sufficient statistical power to detect intervention effects on student achievement, researchers need multilevel design parameters, including measures of between-classroom and between-school differences and the amounts of variance explained by covariates at the student, classroom, and school level. Previous…

Current educational discourse holds that effective pedagogy requires engagement through active student participation with subject matter relating to them. The lack of testing of lessons in series is recognized as a potential weakness in the evidence base, not least because standard parallel designs cannot capture serial interaction effects (cf.…

Educational stakeholders are keen to know the magnitude and importance of different interventions. However, the way evidence is communicated to support understanding of the effectiveness of an intervention is controversial. Typically studies in education have used the standardised mean difference as a measure of the impact of interventions. This…

This report presents findings from exploratory, descriptive meta-analyses of effect sizes reported by the first 82 EEF evaluations that used a randomised controlled trial (RCT) or clustered RCT impact evaluation design published up to January 2019. The review used a theoretical framework derived from literature with five overarching themes to…

This document summarises key findings from the quantitative strands of a review of the Education Endowment Foundation (EEF) evaluations that had reported from the establishment of EEF in 2011 up to January 2019. The quantitative strands summarised include meta-analyses of effect sizes reported for attainment outcomes and descriptive analyses of…

This document provides supplementary statistical tables to support the review of Education Endowment Foundation (EEF) evaluations. This includes: (1) Descriptive (univariate) tables for all explanatory variables; (2) Tables for the meta-analyses of primary ITT effect sizes; (3) Tables for the meta-analyses of secondary ITT effect sizes; (4) Tables…

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…

A growing body of correlational research finds a relationship between self-efficacy--beliefs in one's capabilities--and academic success. But few studies have investigated whether self-efficacy is causally related to academic success. We hypothesized that an experience of success would promote self-efficacy in junior high school students and would…

RAND Europe evaluated the implementation of a technology-based intervention that made use of the Microsoft Immersive Reader (IR) in UK classrooms for eight- and nine-year-old pupils. This is the first evaluation of this intervention that uses a randomised control trial (RCT) design, following promising findings related to the use of IR from a…

The Grade 2 learner results of the Early Grade Reading Study (EGRS) randomised control trial (RCT) in the North West province showed that the structured pedagogic intervention model that included instructional coaching, lesson plans, and quality learning materials was more cost-effective than a similar intervention model that excluded coaching.…

Teacher professional development and in-class mentors were used to support structured inquiry with math manipulatives. Twenty-four primary schools (n = 6,628 students) were randomly assigned to treatment and control groups as an experimental field trial to examine the effectiveness of this instructional approach in a scaled-up application in…

Almost 20% of English pupils still experience difficulties with reading despite the use of a predominantly phonics-based approach that works well for most children, but not for all; therefore, other approaches need to be explored. The Integrated Group Reading (IGR) programme involves an inclusive approach to targeted teaching led by class teachers…