Nonlinear growth curves or growth curves that follow a specified nonlinear function in time enable researchers to model complex developmental patterns with parameters that are easily interpretable. In this article we describe how a variety of sigmoid curves can be fit using the M"plus" structural modeling program and the nonlinear…

"Success for All" (SFA) is one of the best known and thoroughly evaluated school reform models. Further evaluation of the initiative is especially important for two reasons. First, the program model has continued to evolve over time, with a greater emphasis placed on the use of engaging technology in the classroom and on the deployment…

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 examined associations between quality of social and physical environments in preschools and children's development of academic, language, and literacy skills, and the extent to which preschool quality moderated the associations between child risk and development. Participants were a diverse sample of 540 four-year-old children in…

A socioeconomic status (SES) gap in mathematical knowledge emerges early and widens prior to school entry. To address this gap, a curricular intervention, "Pre-K Mathematics," was developed and found to be effective in prior efficacy research. In the present project, the next step was taken in evaluating this intervention. Specifically,…

With the advent of "Response to Intervention" there has been emphasis on preventing reading disabilities. This study examined the effectiveness of a classroom teacher Tier II intervention for struggling readers in kindergarten and first grade called the Targeted Reading Intervention. Three rural schools were randomly assigned to…

Effects of a 1-semester professional development (PD) intervention that included expert coaching with Head Start teachers were investigated in a randomized controlled trial with 88 teachers and 759 children. Differential effects of technologically mediated (remote) versus in-person (on-site) delivery of individualized coaching with teachers also…

This study was designed to examine the effects of tracing and fading prompts to improve the handwriting of two preschoolers both diagnosed as Developmentally Delayed (DD) and one of whom had fine motor goals. The study took place in a self-contained special education public preschool classroom located in the Pacific Northwest. The results showed…

This paper uses a regression discontinuity model to examine the effects on kindergarten entrance assessments of the Kalamazoo County Ready 4s (KC Ready 4s) program, a half-day pre-K program for four-year-olds in Kalamazoo County, Michigan. The results are based on test scores and other characteristics of up to 220 children participating in KC…

Eight first-grade students with either internalizing or externalizing behavioral risk factors participated in a supplemental reading intervention for 30 min per day. The intervention package consisted of three main components: instruction in word recognition, fluency, and appropriate behavior. A multiple-baseline design was employed to assess…

This study followed 515 4-year-olds from Head Start entry to exit to investigate their social and behavioral skills and the impact of these skills on school readiness outcomes. Results indicated that, on average, social skills improved across the preschool year, while behavior problems remained relatively stable. Social skills and behavior…

Background: Children ordinarily begin their formal education at the age when the great majority of them are capable of understanding the role of addition and subtraction in changing number. In determining critical differences they can apply the oddity principle--the first "pure" abstraction that children ever develop--understanding that…

Problems facing African American students with special needs are numerous and complex. Although processes and procedures are in place to properly serve these students, far too many become ensnared in webs of bureaucracy and benign neglect. This article examines African American students? experiences with special education in Milwaukee Public…

This study is the first randomized study of the impacts of the vocabulary instruction program Kindergarten PAVEd for Success (K-PAVE) (Hamilton and Schwanenflugel 2011) on low-income students in kindergarten and grade 1. The study has two components. The first component is a test of the impacts of one year of the K-PAVE vocabulary instruction in…

This article evaluates 2 technology applications for teaching beginning reading. One, embedded multimedia, involves brief phonics and vocabulary videos threaded through teachers' lessons. The other, computer-assisted tutoring, helps tutors with planning, instruction, and assessment. An experiment in 2 high-poverty, high-minority Success for All…