Analysis of consistent Zearn Math users and a comparable group of non-users in District of Columbia Public Schools (DCPS) shows that students who used Zearn Math consistently had higher levels of academic growth than similar students with low- or no-usage. This analysis used two quasi-experimental methods, Coarsened Exact Matching (CEM) and fixed…

We published our first set of Connections Academy efficacy reports containing independently assured efficacy statements in 2018. We went on to build on that body of research, and updated our reporting with new findings in 2021. Our latest study compared Connections Academy students' state test scores in reading and math with students in…

This systematic review of research on early childhood programs seeks to identify effective approaches capable of improving literacy and language outcomes for preschoolers. It applies consistent standards to determine the strength of evidence supporting a variety of approaches, which fell into two main categories: "comprehensive…

The present experimental study was undertaken with three objectives in view, (i) to identify students with language learning disabilities (ii) to develop CAI software to teach LD students through computer-assisted instruction and (iii) to measure the effectiveness of CAI with special reference to LD students. Two matched groups of LD students were…

In the present paper, the authors report on a comparative study on the pedagogic effectiveness of printed self-learning text with face-to-face tutorial support, interactive multimedia CD-ROM and online learning in an introductory computing module at the certificate level offered at Indira Gandhi National Open University (IGNOU), India. The study…

In the present paper, the authors report on a comparative study on the pedagogic effectiveness of printed self-learning text with face-to-face tutorial support, interactive multimedia CD-ROM and online learning in an introductory computing module at the certificate level offered at Indira Gandhi National Open University (IGNOU), India. The study…

This article reviews research on the achievement outcomes of alternative approaches for struggling readers ages 5-10 (US grades K-5): One-to-one tutoring, small-group tutorials, classroom instructional process approaches, and computer-assisted instruction. Study inclusion criteria included use of randomized or well-matched control groups, study…

The present study aims to advance the extant research base by evaluating the implementation and effectiveness of an academic vocabulary program designed for use in mainstream middle school classrooms with high proportions of language minority learners. The quasi-experimental, mixed-methods study was conducted in 21 classes (13 treatment matched to…

This article systematically reviews research on the achievement outcomes of four types of approaches to improving the reading success of children in the elementary grades: reading curricula, instructional technology, instructional process programs, and combinations of curricula and instructional process. Study inclusion criteria included use of…

This report systematically reviews research on the outcomes of programs that teach young children in a group setting before they begin kindergarten. Study inclusion criteria included the use of randomized or matched control groups, evidence of initial equality, and study duration of at least 12 weeks. Studies included valid measures of language,…

This article systematically reviews research on the achievement outcomes of four types of approaches to improving the beginning reading success of children in kindergarten and first grade: Reading curricula, instructional technology, instructional process programs, and combinations of curricula and instructional process. Study inclusion criteria…

This article reviews research on the achievement outcomes of alternative approaches for struggling readers in grades K-5: One-to-one tutoring, small group tutorials, classroom instructional process approaches, and computer-assisted instruction. Study inclusion criteria included use of randomized or well-matched control groups, study duration of at…

To test the efficacy of Baby-Think-It-Over (BTIO) infant simulators, two versions of a sexuality education program were compared. While the program was designed to include BTIO as an important teaching technique, two schools (49 students) opted not to use them. These students completed all elements of the program except the BTIO activities. Their…

This article reviews research on the achievement outcomes of mathematics programs for middle and high schools. Study inclusion requirements included use of a randomized or matched control group, a study duration of at least twelve weeks, and equality at pretest. There were 102 qualifying studies, 28 of which used random assignment to treatments.…

An experimental Basic Electricity and Electronics course (BE/E) utilizing a lock-step, instructor presentation methodology was developed and evaluated at the Service School Command, Great Lakes. The study, directed toward the training of lower mental group, school nonqualified personnel, investigated comparative data on test performance, attitude,…