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…

The purpose of this study was to examine the effects of a physical education-based development and maintenance programme on objective and perceived health-related physical fitness in high school students. A sample of 111 students aged 12-14 years old from six classes were cluster-randomly assigned to an experimental group (n = 54) or a control…

Data-based decision making (DBDM) is an important element of educational policy in many countries, as it is assumed that student achievement will improve if teachers worked in a data-based way. However, studies that evaluate rigorously the effects of DBDM on student achievement are scarce. In this study, the effects of an intensive…

Objective: To evaluate an intervention aimed at increasing human papillomavirus (HPV) vaccine completion of the 3-dose series and knowledge. Participants: Two hundred sixty-four male and female US college students 18-26 years old who were receiving HPV vaccine dose 1. Methods: Students were randomly assigned to the intervention or control group.…

Research Findings: This study examined the potential impacts of ongoing participation (twice weekly for 30 weeks) in teacher-child managed whole-group language and literacy instruction on prekindergarten children's social interaction with classmates. Teacher-child managed whole-group instruction that provides children with opportunities to engage…

The Tech Valley Scholars (TVS) program included 38 students who joined this program over the course of three academic years, from 2009 to 2012. These students comprise the experimental group for this study to determine if participating in the NSF-funded Tech Valley Scholars program improved academic outcomes. The experimental group was compared to…

Research Findings: This study investigated how mean classroom-level shyness scores moderated the impacts of "INSIGHTS" into "Children's Temperament" on instructional support and students' math and reading skills in kindergarten and 1st-grade classrooms. "INSIGHTS" is a temperament-based social-emotional learning…

To improve the reading comprehension outcomes of children in high-poverty schools, policymakers need to identify reading interventions that show promise of effectiveness at scale. This study evaluated the effectiveness of a low-cost and large-scale summer reading intervention that provided comprehension lessons at the end of the school year and…

The Perry Beeches Coaching Programme aimed to improve the reading and writing skills of Year 7 pupils with low levels of attainment in four English secondary schools. Across the project, 16 coaches were employed to provide academic support to pupils who had not reached level 4c in English at the end of Key Stage 2. Originally it had been intended…

The SUN approach to biological energy transfer education is fundamentally different from past practices that trace chemical and energy inputs and outputs. The SUN approach uses a hydrogen fuel cell to convince learners that electrons can move from one substance to another based on differential attraction. With a hydrogen fuel cell, learners can…

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 purpose of this study was to document the design, classroom implementation, and effectiveness of interactive online units to enhance science learning over 3 years among students with learning disabilities, English learners, and general education students. Results of a randomised controlled trial with 2,303 middle school students and 71…

The ReflectED programme was developed by Rosendale Primary School to improve pupils' metacognition--their ability to think about and manage their own learning. This includes the skills of setting and monitoring goals, assessing progress, and identifying personal strengths and challenges. ReflectED consists of 28, weekly, half-hour lessons, which…

Given the dearth of high-quality curriculum materials aligned with the new standards (NGSS and CCSS) and low student persistence in STEM fields, we sought to develop and test a STEM curriculum that would improve student knowledge, interest, and emotions. A cluster randomized control trial was conducted to assess the impact of Speedometry, a…

This experiment tested the effect that calculator use had on 200 randomly assigned college students' mathematical performance. The purposes of the current experiment were twofold: to measure the level of mathematical preparation of current college students, and to test whether calculators improve mathematical performance in such students as it…