Age of Acquisition (AoA) scores approximate the age at which a language speaker fully understands a word's semantic meaning and represent a quantitative measure of the relative difficulty of words in a language. AoA word lists exist across various languages, with English having the most complete lists that capture the largest percentage of the…

Children learning two languages (Dual Language Learners; DLLs) represent a rapidly growing population in the United States. DLLs are disproportionately more likely to live in families of low socioeconomic status (SES), which places many of them at risk for poor dual-language outcomes. To date, most studies on SES and dual language development have…

The development of beginning decoding and encoding skills is influenced by linguistic skills as well as executive functions (EFs). These higher-level cognitive processes include working memory, inhibition, and cognitive flexibility, and individual differences in these EFs have been shown to contribute to early academic learning. The present study…

We investigated the dimensionality and relations between L1 (a speaker's first language) and L2 (a speaker's second language) writing skills in narrative and informational genres and higher order cognitive skills--inference, perspective taking, and comprehension monitoring--for Spanish-English dual language learners in primary grades. Dimensions…

This report contributes to understanding of the academic trajectories of ELL [English language learner] students within the FWISD [Fort Worth Independent School District]. The focus is on all students who enrolled as first-time sixth graders at the International Newcomer Academy (INA) in the 2006-2007 school year, a cohort of 48 students. These…

This report is part of a long-term collaboration of the Quality Teaching for English Learners initiative at WestEd with the Fort Worth Independent School District. The focus of this report is on a historical cohort of ninth graders who were enrolled at the International Newcomer Academy in the 2009-2010 school year. This report follows this cohort…

The population of Spanish-speaking preschoolers in the United States continues to increase and there is a significant need to develop psychometrically sound early language and literacy screening measures to accurately capture children's ability in Spanish. In this paper, we describe the innovative design and calibration process of the new…

This report is part of a long-term collaboration of the Quality Teaching for English Learners initiative at WestEd with the Fort Worth Independent School District. The focus of this report is on comparisons between ninth grade newcomers and other groups of English language learners (ELLs). Analyses compare newcomers to 1) long-term ELLs who were…