The purpose of this article is to describe a 40+ year journey during which researchers have endeavored to design and evaluate an integrated, empirically based reading intervention for secondary students and to chronicle the lessons learned as well as suggest future directions for this type of work. Initial development of the intervention began in…

In experimental evaluations of policy interventions, the so-called Bloom adjustment is commonly used to estimate the impact of the treatment on the treated. It does so by rescaling the estimated impact of the intention to treat--that is, the overall treatment-control group difference in outcomes for the entire experimental sample--by the…

An aspect of a study is considered a confounding factor if it is not possible to tell whether the difference in outcomes is due to the intervention, the confounding factor, or both. In What Works Clearinghouse (WWC) study reviews, certified reviewers look for a specific type of confounding factor: those that occur when a component of the study…

In 2016, Union County College began a four-year experiment with corequisite developmental mathematics as part of a grant from the U.S. Department of Education's First in the World (FITW) program. In this experiment, students assessed as needing to take developmental mathematics courses would be eligible to receive a waiver from their developmental…

The evaluation of intervention effects is an important objective of educational research. One way to evaluate the effectiveness of an intervention is to conduct an experiment that assigns individuals to control and treatment groups. In the context of pretest/posttest designed studies, this is referred to as a control-group pretest/posttest design.…

Objective: This study aims to evaluate the impact of a community development program meant to improve living standards of poor rural families through income generating activities (IGAs) based on conditional cash transfers (CCTs) in Doti, Nepal. Method: We use cross-sectional field data from a sample of 392 families representative of the village…

This paper describes the impact of the One World in Schools human rights education programme on the attitudes, self-efficacy and intention to act of a sample of Georgian secondary school students (n = 303). For the evaluation, a mixed approach was applied, combining pre/post experimental/control group design, post-programme teacher and student…

The purpose of this research is to examine the effect of the "Incredible Years (IY) Child Training Program" on behavioral problems, social competence, and social problem-solving skills. The research was performed using a pretest-posttest experimental design with a control group to determine the effects of the IY program on the level of…

This report presents 30-month impact results from a random assignment evaluation of the Young Adult Internship Program (YAIP), a subsidized employment program for young people in New York City who have become disconnected from school and work. Operated by various provider agencies, YAIP offers disconnected young people between the ages of 16 and…

The effectiveness of a peer-mentoring program was examined at a university in California. Previous studies suggest university peer mentoring might increase students' feelings of engagement, which can contribute to their retention. Pretest and posttest data were collected from 304 freshmen (mentored and nonmentored) during the fall of 2012 in a…

We conducted a 14-week experimental study of 2 versions of a relatively comprehensive RC intervention that involved 50 classroom teachers, 15 tutors, and 116 children drawn in equal proportions from grades 3 and 5 in 13 schools in a large urban school district. Students were randomly assigned in equal numbers to the two tutoring conditions and a…

The aim of this study was to evaluate the effectiveness of Neurological Impress Method (NIM) on reading fluency of students with learning disabilities in Amman, Jordan. A sample of forty students (boys and girls) between the ages 10-12 years old with learning disabilities were selected from the Fourth Amman Educational Directorate in the Hashemite…

We conducted a 14-week experimental study of 2 versions of a relatively comprehensive RC intervention that involved 50 classroom teachers, 15 tutors, and 120 children drawn in equal proportions from grades 3 and 5 in 13 schools in a large urban school district. Students were randomly assigned in equal numbers to the 2 tutoring conditions and a…

This document presents the technical appendices that accompanies the full report, "Evaluation of the DC Opportunity Scholarship Program: Impacts Three Years after Students Applied." The four appendices include: (1) Program Features, Lottery Structure, Study Sample, and School Characteristics; (2) Technical Approach; (3) Impact Findings…

A teacher training program, named Model-Supported Scientific Inquiry Training Program (MSSITP) has been successfully developed to improve the inquiry skills of Indonesian elementary teachers. The skills enhanced by MSSITP are defining problems, formulating hypotheses, planning and doing investigations, drawing conclusions, and communicating the…