Objective: Accurate estimation of developmental trajectories can inform instruction and intervention. We compared the fit of linear, quadratic, and piecewise mixed-effects models of reading development among students with learning disabilities relative to their typically developing peers. Method: We drew an analytic sample of 1,990 students from…

The relationship between basic oral language and early numeracy has been studied extensively, but results hardly include kindergartners' math language, which might mediate this relationship. The aim of this study was to investigate the development of basic language skills--specifically, math language and low early numeracy. Dutch children (4-5…

Rapid automatized naming (RAN) is widely used to identify reading disabilities (RD) and has recently been considered a potential predictor of risk for mathematics learning disabilities (MLD). Here we longitudinally examine RAN performance from Grades K to 8, to view how growth on RAN response time differs for children with RD versus MLD. Across…

The purpose of this article was twofold: (1) to explore the feasibility of the regression discontinuity design (RDD) in response-to-intervention implementation research and (2) to expand upon the limited research on vocabulary instruction for kindergarten students who are at risk for reading failure due to limited vocabularies. This pilot study…

The purpose of this article is to describe research-based reading intervention within a Response-to-Intervention (RTI) model, using prevention science as a context. First, RTI is defined and a rationale is provided for its use in improving the reading performance of all students, particularly those students identified as at risk for…

Children with behavioral challenges are at the greatest risk for chronic school failure. The response-to-intervention (RTI) model was written into law through the Individuals with Disabilities Education Act of 2004 as a means to identify children with learning disabilities. The RTI model provides for increased intervention based on students'…

We present evidence that the positive relationship between kindergarten entrance age and school achievement primarily reflects skill accumulation prior to kindergarten, rather than a heightened ability to learn in school among older children. The association between achievement test scores and entrance age appears during the first months of…

Two general models exist for implementing Response to Intervention (RtI) for struggling students, the standard protocol model and the problem-solving model. This study examined the long-term outcomes of one example of the problem-solving method, the Instructional Support Team (IST), in a field setting. Academic records of 32 students were reviewed…

The use of the term "response to intervention" focuses on its potential utility for diagnosis of learning disabilities. In this context, "response to intervention" can be understood as a diagnostic approach for determining which students are entitled to special educational services. It is important to notice that the validity of the RTI diagnostic…

Considerable variation exists across response-to-intervention (RTI) approaches. There is currently insufficient research on outcomes associated with these different RTI approaches to inform decision-making. However, school psychologists who are asked to work within an RTI model need guidance to select an approach that has a high likelihood of…