Special Education Representation Trends Vary by Language Status: Evidence of Underrepresentation in Tennessee.

Using state-level data, we report unadjusted and adjusted odds ratio of special education (SPED) trends in Tennessee from 2009 to 2019 for students in Grades 3 to 8 by three language groups: native English speakers (NES), English-proficient bilinguals (EPB), and Current English learners (Current EL). We report trends across all SPED disability categories and across five prevalent disability categories (specific learning disability, specific language impairment, intellectual disability, other health impairments, and autism). The cross-sectional analytic sample included 812,783 students from 28 districts that met the SPED risk ratio threshold set by the state. Results revealed that, compared with NES students, both EPB and Current EL students were generally less likely to receive SPED services, suggesting evidence of language status disparities in SPED representation. Furthermore, findings varied depending on whether adjustments were made to generate odds ratios, especially for higher-incidence disabilities (specific learning disability, specific language impairment, and intellectual disability). Finally, the most severe evidence of underrepresentation was in lower-incidence disabilities (other health impairments and autism). Our results underscore the need for further examination into low rates of SPED identification among learners whose first language is not English (EPB and Current EL). We discuss the contextualized research, practice, and policy implications of our findings.

Comparing Vocabulary Knowledge Conceptualizations Among Spanish-English Dual Language Learners in a New Destination State.

Purpose Despite the unprecedented growth of Spanish-English dual language learners (DLLs) in new destination states-where DLLs have not been historically served-empirical understanding of their language and literacy skills is scant. Drawing on scientific understandings of bilingual language acquisition, we compare monolingually scored and bilingually scored vocabulary knowledge of Spanish-English DLLs in a new destination state. Method Participants included second- and fourth-grade Spanish-English DLLs (N = 60) in a large urban school district in a new destination state. Students were considered DLLs if their parents indicated that Spanish was spoken at home to some extent. We utilized monolingually scored (Spanish-only and English-only) and bilingually scored (conceptual and total) conceptualizations of vocabulary knowledge. Descriptive analysis and Bonferroni-adjusted multiple comparisons were used to compare vocabulary knowledge by assessment approach (i.e., monolingual or bilingual), grade (i.e., second and fourth), and English proficiency status (i.e., limited English proficient and English proficient). Results Findings revealed that (a) DLLs, across grade levels and English proficiency status, demonstrated higher bilingual vocabulary scores compared to monolingual scores and stronger receptive vocabulary performance than expressive vocabulary performance and (b) DLLs' response patterns varied depending on the bilingual assessment approach used, with DLLs in limited English-proficient and English-proficient groups evidencing similar response patterns. Conclusions Bilingual scoring of vocabulary knowledge provides a more holistic understanding of elementary-aged DLLs' language skills. Results represent an important step toward shifting school-based assessment practices to incorporate comprehensive and equitable ways to conceptualize and measure elementary-aged Spanish-English DLLs' vocabulary knowledge.

Early Elementary Grade Dual Language Learners from Spanish-speaking Homes Struggling with English Reading Comprehension: The Dormant Role of Language Skills.

This study investigated contributors of English reading comprehension outcomes among predominantly U.S.-born first and third grade (N = 73) dual language learners (DLLs) from Spanish-speaking, low-income homes who attend English-only instructional schools in the Southern region of the U.S., which is experiencing historic rates of school-age DLL enrollment. We investigated the utility of various conceptualizations of vocabulary, namely English-only, Spanish-only, and specifically Spanish-English conceptually-scored receptive vocabulary, in understanding DLLs' reading comprehension. We first examined whether a gap was evident between the various conceptualizations of vocabulary and English word reading. Then, using structural equation modeling, we investigated the influence of the various conceptualizations of vocabulary on English reading comprehension, accounting for English word reading skills. Finally, we examined the potential contributions of DLLs' home language environments. Results revealed that the gap between English word reading and vocabulary varied as a function of the conceptualization of vocabulary. Further, English word reading emerged as the robust contributor to children's English reading comprehension, with no significant influence of receptive vocabulary, regardless of how it was conceptualized. Finally, and contributing to a nascent area of research, attention to DLLs' home language use practices suggests that the productive language domain (i.e., children's own home language use) may represent an important contributor to English reading comprehension among DLLs from Spanish-speaking homes. We discuss theoretical and practical implications.

Patterns of Development in Spanish-English Conceptually Scored Vocabulary Among Elementary-Age Dual Language Learners.

Purpose Elementary-age dual language learners (DLLs) from Spanish-speaking homes in the United States are often characterized as at risk for low vocabulary in both Spanish and English. This longitudinal study examined conceptually scored receptive and expressive vocabulary development among DLLs from Spanish-speaking, low-income homes and investigated patterns of language responses on the conceptually scored measures. Method DLLs in kindergarten and second grade (N = 118) attending school in the Southeast region of the United States were followed for three consecutive academic years and assessed on measures of receptive and expressive conceptually scored vocabulary. Results Individual growth modeling, using raw scores, revealed positive vocabulary growth over time, with above average performance relative to national norms. However, initial conceptually scored receptive vocabulary scores were higher than conceptually scored expressive vocabulary scores. Furthermore, DLLs' conceptually scored receptive-but not expressive-vocabulary rate of growth was more rapid compared to national norms. Finally, DLLs' patterns of language responses revealed a shift toward more English over time, but Spanish continued to be used through fourth grade. Conclusion Results contradict deficit-driven views about DLLs' vocabulary skills and underscore the utility of conceptually scored vocabulary measures to assess vocabulary development among elementary-age DLLs to more comprehensively account for the linguistic assets they bring to learning.

Spanish-speaking English learners' English language and literacy skills: The predictive role of conceptually-scored vocabulary.

Vocabulary represents a key barrier to language and literacy development for many English learners. This study examined the relationship between Spanish-speaking English learners' conceptually-scored Spanish-English vocabulary, academic English proficiency, and English reading comprehension. Second- and fourth-grade English learners (N = 62) completed standardized conceptually-scored vocabulary measures in the fall and state-administered standardized measures of academic English proficiency and English reading comprehension in the spring. Conceptually-scored vocabulary measures are designed to tap knowledge of the number of known concepts, regardless of the specific language (Spanish or English) used to label the concept. Regression analyses revealed that academic English proficiency and English reading comprehension were not predicted by the conceptually-scored measure of receptive vocabulary. However, both academic English proficiency and English reading comprehension were predicted by the conceptually-scored measure of expressive vocabulary. Importantly, the relationship between conceptually-scored expressive vocabulary and English reading comprehension remained after controlling for academic English proficiency. Results underscore the utility of measures that incorporate English learners' first and second language skills in understanding the vocabulary knowledge English learners bring to English language and literacy learning tasks.