This study aimed to examine language at the teacher/classroom level among second-grade classrooms that differ in socioeconomic backgrounds. Measures of teachers' vocabulary input across the school day throughout the school year were examined. There was a significant difference in the proportion of academic word use between classes that differed in…

This study aimed to examine verbal behaviors within communicative interactions at the teacher/classroom level among second-grade classrooms that differ in socioeconomic status (SES) backgrounds. Investigators recorded and examined language use across instructional periods for 38 second-grade classrooms. Teachers' communication behaviors were…

This study aimed to describe 2nd-grade teachers' use of different forms of praise during English Language Arts (ELA) instruction and examine if teacher characteristics were associated with differences in the use of different types of praise. Investigators recorded 2nd-grade teachers' language use during randomly selected, 15-min excerpts (n = 912)…

This study aimed to describe 2nd-grade teachers' use of different forms of praise during English Language Arts (ELA) instruction and examine if teacher characteristics were associated with differences in the use of different types of praise. Investigators recorded 2nd-grade teachers' language use during randomly selected, 15-min excerpts (n = 912)…

The primary aims of this study were twofold: (a) to describe average change in the written narrative performance of second grade students from the fall and spring of the school year and (b) examine patterns of individual growth to test for Matthew effects. Participants included 299 children in second grade. Microstructural measures were derived…

The primary aims of this study were two-fold: (1) to describe average change in the written narrative performance of second grade students from the fall and spring of the school year; and (2) examine patterns of individual growth to test for Matthew effects. Participants included 299 children in second grade. Microstructural measures were derived…

Complex research questions often need large samples to obtain accurate estimates of parameters and adequate power. Combining extant data sets into a large, pooled data set is one way this can be accomplished without expending resources. Measurement invariance (MI) modeling is an established approach to ensure participant scores are on the same…

Many states now mandate early screening for dyslexia, but vary in how they address these mandates. There is confusion about the nature of screening versus diagnostic assessments, risk versus diagnosis, concurrent versus predictive validity, and inattention to indices of classification accuracy as the basis for determining risk. To help define what…

This study examined how teachers and paraprofessionals in 126 kindergarten-second grade general and special education classrooms talked with their 194 students with autism, and further, how individual student characteristics in language, autism symptoms, and social abilities influenced this talk. Using systematic observational methods and factor…

Purpose: We sought to examine second grade teachers' word use throughout the school day to identify the amount and type of teacher vocabulary use across content areas as well as to examine relationships between this teacher talk and student language and literacy achievement. Method: Second grade teachers (n = 64) and a random sample of half of…

Purpose: The authors of this study described developmental trajectories and predicted kindergarten performance of Spanish and English receptive vocabulary acquisition of young Latino/a English language learners (ELLs) from socioeconomically disadvantaged migrant families. In addition, the authors examined the extent to which gender and individual…

This study introduces a co-twin control method commonly used in the medical literature but not often within educational research. This method allows for a comparison of twins discordant for an "exposure," approximating alternative outcomes in the counterfactual model. Example analyses use data drawn from the Florida Twin Project on…

This study explores the co-development of two related but separate reading skills, reading fluency and reading comprehension, across Grades 1-4. A bivariate biometric dual change score model was applied to longitudinal data collected from 1,784 twin pairs between the ages of 6 and 10 years. Grade 1 skills were influenced by highly overlapping…

The present study seeks to evaluate a hybrid model of identification that incorporates response to instruction and intervention (RTI) as one of the key symptoms of reading disability. The 1-year stability of alternative operational definitions of reading disability was examined in a large-scale sample of students who were followed longitudinally…

Despite data supporting the benefits of early reading interventions, there has been little evaluation of the long-term educational impact of these interventions, with most follow-up studies lasting less than 2 years (Suggate, 2010). This study evaluated reading outcomes more than a decade after the completion of an 8-month reading intervention…