We conducted a randomized controlled potential efficacy trial to examine effects of two variants of the Tools for Teachers (TfT) professional development (PD) intervention on preschool teachers' implementation of embedded instruction practices and children's developmental and learning outcomes. Thirty-six preschool teachers recruited from three…

In this article, we describe results of a reanalysis of two randomized studies that tested the effects of enhanced anchored instruction (EAI) on the fractions computation performance of students in special education resource rooms and inclusive mathematics classrooms. Latent class analysis and latent transition analysis classified students…

This experimental study reports findings on the effects from a year-long reading intervention providing daily 50-min sessions to middle school students with identified learning disabilities (n = 65) compared with similar students who did not receive the reading intervention (n = 55). All students continued to receive their special education…

This study investigated a Tier 2 intervention in the context of a response-to-intervention (RTI) model for 123 fourth-grade students identified as having a high probability of reading failure. A randomized control trial was used to evaluate the effects of a 24-session multicomponent supplemental intervention targeting fluency and expository…

The purpose of this study was to determine the effects of an early numeracy preventative Tier 2 intervention on the mathematics performance of first-grade students with mathematics difficulties. Researchers used a pretest-posttest control group design with randomized assignment of 139 students to the Tier 2 treatment condition and 65 students to…

This article assesses the effects of Tulsa, Oklahoma's school-based prekindergarten program on the school readiness of children with special needs using a regression discontinuity design. Participation in the pre-K program was associated with significant gains for children with special needs in early literacy scores, but not in math scores. These…

This article addresses the effects of 3-tiered comprehensive reading and behavior interventions on K-3 student outcomes in 7 urban elementary schools with a high prevalence of students considered difficult to teach. Specific features of each level of the implementation are described including screening and tier placement procedures, scheduling and…

This article examined the efficacy of a primary-level, standard-protocol behavior intervention for students with externalizing behavioral disorders. Elementary schools were randomly assigned to treatment (behavior intervention) or control (business as usual) conditions, and K-3 students were screened for externalizing behavior risk status. The…

This study compared the effects of 2 supplemental interventions on the beginning reading performance of kindergarteners identified as at risk of reading difficulty. Students (N = 206) were assigned randomly at the classroom level either to an explicit/systematic commercial program or to a school-designed practice intervention taught 30 min per day…

The effectiveness study examined a supplemental reading intervention that may be appropriate as one component of a response-to-intervention (RTI) system. First-grade students in 31 schools who were at risk for reading difficulties were randomly assigned to receive Responsive Reading Instruction (RRI; Denton, 2001; Denton & Hocker, 2006; n =…

This study examined the effects of an intensive shared book-reading intervention on the vocabulary development of preschool children who were at risk for vocabulary delay. The participants were 125 children, who the researchers stratified by classroom and randomly assigned to one of two shared book-reading conditions (i.e., the experimental, Words…

This study determined the effectiveness of Kindergarten Peer-Assisted Learning Strategies (K-PALS) for students with disabilities. The researchers randomly assigned 89 kindergartners with individualized education programs (IEPs) from 47 classrooms to control (n = 9); K-PALS Level 1 (teachers received 1-day workshop; n = 19); or K-PALS Level 2…

This research is part of a study on scaling-up middle school science curriculum units in a large, diverse public school system. Chemistry That Applies (CTA), a guided inquiry unit based on conceptual change theory and highly rated according to the Project 2061 Curriculum Analysis, was implemented in five middle schools matched demographically with…

This study compared three levels of inclusion (special education only, integrated special education, and mainstream placements) on the cognitive and language development of 66 preschool children with disabilities. Analysis of pre- to postgains revealed that integrated special education produced gains that significantly exceeded the rate of normal…