Background: Evidence exists that there are two main underlying cognitive factors in mathematical difficulties: working memory and number sense. It is suggested that real math difficulties appear when both working memory and number sense are weak, here referred to as the double deficit (DD) hypothesis. Aims: The aim of this study was to test the DD…

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…

Early numeracy in kindergarten has proven to be a strong predictor of mathematical achievement. The aims of this study were to test the effectiveness of a remedial numeracy program for children who were low performing and to evaluate the role of visual and verbal working memory in the development of numeracy. The study included 196 kindergartners.…

Poor academic performance during childhood predicts later adverse outcomes, and could be targeted for improvement if detected early. This study used population-based record linkage to examine the association between early life risk factors and academic achievement at two different stages of development using two different cohorts: a kindergarten…

Concern about kindergarten retention is on the rise within the current climate of high-stakes testing and escalating kindergarten expectations. Kindergarten retention has been linked in previous research to various risk factors such as poverty, low maternal education, single parent status, minority status, English language learner (ELL) status,…

The authors investigated whether age at kindergarten entry was associated with early literacy achievement gaps and if these gaps persisted over time. Using the kindergarten age eligibility cutoff date, they created 2 groups of students who represented the oldest and youngest children in a cohort of students in high-poverty, low-performing schools.…

The low achievement of students from non-English-speaking households living in low socioeconomic contexts is associated with academic skill gaps evident at kindergarten entry. Yet, few cost-effective, valid instruments are available to assess these students' school readiness. To examine this topic, this longitudinal study followed 1,069 primarily…

The purpose of this study was to determine the relationship between school readiness skills as measured by the Missouri KIDS and academic potential in reading and math as measured by the scores on the CTP4 in grades 2-4 in a private, independent school. This study identified which school readiness skills most accurately predict the need for…

The Alphabetic Braille and Contracted Braille Study found no difference between high and low achievers in the development of literacy skills on such measures as age, etiology of visual impairment, family attitudes and behaviors regarding literacy activities, class size, and time spent with a teacher of students with visual impairments. Some…

Background/Context: Although there is relative agreement on the pattern of the achievement gap, attributing changes in the gap to schooling is less clear. Our study contributes to understanding potential teacher and teaching effects on achievement and inequality. Purpose/Objective/Research Question/Focus of Study: We intend our work to contribute…

A fundamental assumption in the identification of specific learning disabilities (SLD) has been that the presence of a severe discrepancy between ability and academic achievement is a valid marker for the presence of a SLD. This assumption is based on the notion that discrepant low achievers constitute a unique group of children who are different…

Kindergarten to third grade mathematics achievement scores from a prospective study of mathematical development (n = 306) were subjected to latent growth trajectory analyses. The four corresponding classes included children with mathematical learning disability (MLD, 6% of sample), and low (LA, 50%), typically (TA, 39%) and high (HA, 5%) achieving…

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…

A sample of 784 children with below-median literacy performance in kindergarten or at the beginning of grade 1 was assessed in 5 areas of psychological and social variables: academic competence, sociodemographic characteristics, social/emotional/behavioral characteristics, school context, and home environment. We examined the contribution of…