Vocabulary Outcomes Research Articles

Experiential, perceptual, and cognitive individual differences in the development of declarative and automatized phonological vocabulary knowledge

Abstract The present study explores the influence of individual differences in experience, perceptual acuity, and working memory on the development of both declarative and automatized aspects of L2 phonological vocabulary knowledge. A total of 486 Japanese English-as-a-foreign-language (EFL) students took part in two vocabulary tests designed to measure declarative (meaning recognition) and automatized knowledge (lexicosemantic judgement task). Their performance was tied to the quantity and quality of their EFL experience, as well as their scores in auditory processing and working memory. While several significant, modest correlations between experience, aptitude, and vocabulary outcomes were observed, certain predictor variables were uniquely associated with either declarative or automatized vocabulary performance. Specifically, individuals with more extensive, typically language-focused EFL training and greater working memory demonstrated higher levels of declarative knowledge. Conversely, those who pursued extracurricular practice outside the classroom – exposing themselves to auditory materials and/or participating in study-abroad experiences – showed a more automatic execution of vocabulary knowledge.

The role of dyadic combinations of infants' behaviors and caregivers' verbal and multimodal responses in predicting vocabulary outcomes.

There is robust evidence that infants' gestures and vocalisations and caregivers' contingent responses predict later child vocabulary. Recent studies suggest that dyadic combinations of infants' behaviors and caregivers' responses are more robust predictors of children's vocabularies than these behaviors separately. Previous studies have not yet systematically compared different types of dyadic combinations. This study aimed to compare the predictive value of (a) frequencies of infants' behaviors (vocalisations, points, and shows+gives) regardless of caregivers' responses, (b) frequencies of infants' behaviors that elicited verbal responses, (c) frequencies of infants' behaviors that elicited multimodal responses, and (d) frequencies of infants' behaviors that did not elicit any responses from caregivers. We examined 114 caregiver-infant dyads at 9-11months and children's concurrent and longitudinal vocabulary outcomes at 2-4years. We found that infants' points elicited a large proportion of verbal responses from caregivers which were related to children's later receptive vocabularies. We also found that only shows+gives that elicited caregivers' responses related to infants' concurrent gesture repertoires. In contrast, infants' behaviors that did not elicit responses negatively related to child vocabulary. The results highlight the importance of examining dyadic combinations of infants' behaviors and caregivers' responses during interactions when examining relations to children's vocabulary development.

A Systematic Review of Mathematics Vocabulary Interventions for Students With or At-Risk for Mathematics Difficulty

This systematic review synthesizes the effects of mathematics vocabulary interventions on the mathematics outcomes of students with mathematics difficulty (MD) in Grades K through 12. We evaluated methodological rigor using three indicators: research design, implementation fidelity, and instruction in the counterfactual. Six peer-reviewed studies and three unpublished dissertations between 1990 and 2022 met inclusion criteria. Results showed mathematics vocabulary interventions improved students’ vocabulary knowledge, particularly when instruction was explicit with multiple opportunities to practice. Findings were less conclusive on whether improved mathematics vocabulary knowledge led to improved performance on related mathematics content. Results suggest mathematics vocabulary intervention is beneficial for higher-level mathematics reasoning, such as word-problem solving. The seven group design studies received an M rating of at least acceptable for methodological rigor, and one of two single-case studies met What Works Clearinghouse design standards without reservations. We highlight promising instructional practices implemented across studies that resulted in improved vocabulary outcomes.

The Use of Short Stories to Improve Vocabulary: Understanding the Perceptions of EFL Students

The integration of technologies, such as virtual learning environments, web-based collaborative setups, and gamified applications, tend to promote the positive effects of short stories on vocabulary learning in a foreign language. This study investigates the effectiveness of using short stories as a pedagogical tool for enhancing vocabulary acquisition in English as a Foreign Language (EFL) students. Two cohorts of participants took part simultaneously in a course to improve vocabulary through short stories graded according to their level of proficiency. The highly validated tool MSLQ was applied to gather perceptions of motivation and learning strategies throughout the course. Correlational analyses suggest that short stories, combined with appropriate technological and pedagogical strategies, offer a powerful approach to vocabulary learning in diverse educational contexts. The study also emphasizes the importance of self-regulated learning mechanisms, which promote learner autonomy and self-efficacy, leading to better vocabulary outcomes. This research contributes to the understanding of effective vocabulary learning and provides practical insights for educators seeking to enhance EFL students' language mastery.

The role of lexical and prosodic characteristics of mothers' child-directed speech for the early vocabulary development of Italian children with cochlear implants.

Variability in the vocabulary outcomes of children with cochlear implants (CIs) is partially explained by child-directed speech (CDS) characteristics. Yet, relatively little is known about whether and how mothers adapt their lexical and prosodic characteristics to the child's hearing status (before and after implantation, and compared with groups with normal hearing (NH)) and how important they are in affecting vocabulary development in the first 12 months of hearing experience. To investigate whether mothers of children with CIs produce CDS with similar lexical and prosodic characteristics compared with mothers of age-matched children with NH, and whether they modify these characteristics after implantation. In addition, to investigate whether mothers' CDS characteristics predict children's early vocabulary skills before and after implantation. A total of 34 dyads (17 with NH, 17 with children with CIs; ages = 9-32 months), all acquiring Italian, were involved in the study. Mothers' and children's lexical quantity (tokens) and variety (types), mothers' prosodic characteristics (pitch range and variability), and children's vocabulary skills were assessed at two time points, corresponding to before and 1 year post-CI activation for children with CIs. Children's vocabulary skills were assessed using parent reports; lexical and prosodic characteristics were observed in semi-structured mother-child interactions. Results showed that mothers of children with CIs produced speech with similar lexical quantity but lower lexical variety, and with increased pitch range and variability, than mothers of children with NH. Mothers generally increased their lexical quantity and variety and their pitch range between sessions. Children with CIs showed reduced expressive vocabulary and lower lexical quantity and variety than their peers 12 months post-CI activation. Mothers' prosodic characteristics did not explain variance in children's vocabulary skills; their lexical characteristics predicted children's early vocabulary and lexical outcomes, especially in the NH group, but were not related to later language development. Our findings confirm previous studies on other languages and support the idea that the lexical characteristics of mothers' CDS have a positive effect on children's early measures of vocabulary development across hearing groups, whereas prosodic cues play a minor role. Greater input quantity and quality may assist children in the building of basic language model representations, whereas pitch cues may mainly serve attentional and emotional processes. Results emphasize the need for additional longitudinal studies investigating the input received from other figures surrounding the child and its role for children's language development. What is already known on the subject Mothers' CDS is thought to facilitate and support language acquisition in children with various language developmental trajectories, including children with CIs. Because children with CIs are at risk for language delays and have acoustic processing limitations, their mothers may have to produce a lexically simpler but prosodically richer input, compared to mothers of children with NH. Yet, the literature reports mixed findings and no study to our knowledge has concurrently addressed the role of mothers' lexical and prosodic characteristics for children's vocabulary development before implantation and in the first 12 months of hearing experience. What this study adds to the existing knowledge The study shows that mothers of children with CIs produce input of similar quantity but reduced variety, and with heightened pitch characteristics, compared to mothers of children with NH. There was also a general increase in mothers' lexical quantity and variety, and in their pitch range, between sessions. Only their lexical characteristics predicted children's early vocabulary skills. Their lexical variety predicted children's expressive vocabulary and lexical variety only in the NH group. What are the practical and clinical implications of this work? These findings expand our knowledge about the effects of maternal input and may contribute to the improvement of early family-centred intervention programmes for supporting language development in children with CIs.

Comparing Different Methods That Measure Bilingual Children’s Language Environment: A Closer Look at Audio Recordings and Questionnaires

The quantity of language input is a relevant predictor of children’s language development and is frequently used as a variable in child bilingualism research. Studies use various methods to measure bilingual language input quantity, but it is currently unknown what the optimal method is. We investigated the bilingual language input estimates of 31 Turkish–Dutch and 21 Polish–Dutch 3- to 5-year-old bilingual children, obtained via the questionnaire for Quantifying Bilingual Experience (Q-BEx) and day-long audio recordings made with Language Environment Analysis (LENA), and proposed a combined method that could overcome several shortcomings of the individual methods. The three methods are compared to each other in their correlation strength with receptive and expressive vocabulary scores. Each individual method correlated significantly with vocabulary scores, regardless of modality or language. Contrary to our hypothesis, the combined method did not correlate stronger with vocabulary outcomes than the Q-BEx and LENA individually did. The latter two did not differ significantly from each other in their correlational strength with vocabulary outcomes. These findings show that both the Q-BEx, LENA, and combined method can be deemed reliable to measure bilingual language input quantity. Future studies can make more informed decisions about their methodology in children’s bilingualism research.

The Feasibility of an Online Language Program Delivered Through Music and the Impact of Dosage on Vocabulary Outcomes in Young Children With Down Syndrome.

Few studies have explored the feasibility of online language interventions for young children with Down syndrome. Additionally, none have manipulated dose frequency or reported on the use of music as a medium through which language and sign can be learned. The purpose of this study was to (a) examine the feasibility and acceptability of an online language through music intervention for young children (1-3;6 years) with Down syndrome and (b) compare effectiveness at two intervention dose frequencies. The study was carried out in two phases using a mixed-methods design. Phase 1: Qualitative data were gathered from parents to examine feasibility when implementing a video-based language intervention. Phase 2: Seventy-six families participated in an online language intervention at home. Effectiveness was examined comparing two groups, randomly assigned to a high and low dose frequency. The Down Syndrome Education (DSE) checklists (combined) were the primary outcome measure. Process data were gathered to determine intervention acceptability in practice and to identify factors that would improve successful future implementation. Acceptability data were analyzed with reference to the theoretical framework of acceptability (Version 2). Forty-three parents completed the Phase 1 scoping questionnaire, five of whom took part in focus groups. Once weekly morning sessions were indicated as the preferred scheduling choice. Phase 2 quantitative data were analyzed using beta regression adjusted for baseline scores and indicated no additional benefit to receiving the higher dose. However, exploratory interaction models suggested that the efficacy of the high-dose intervention was higher (than low-dose intervention) in participants with higher baseline DSE performance. Parents perceived the intervention to be effective and positive for the family. The results add to our knowledge of real-world effective online interventions and suggest that a critical minimum language level is required for children with Down syndrome to benefit optimally from a higher intervention dose frequency. https://doi.org/10.23641/asha.25979704.

Social interactions offset the detrimental effects of digital media use on children's vocabulary.

Young children's rapid vocabulary growth during the first few years is supported by input during social interactions with caregivers and, increasingly, from digital media. However, the amount of exposure to both sources can vary substantially across socioeconomic classes, and little is known about how social interactions and digital media use together predict vocabulary in the first few years of life. The current study takes a first step toward examining whether increased social interactions with other individuals may buffer the potentially detrimental effects of digital media use on language among a socioeconomically diverse sample. 305 caregivers of children between 17 and 30-months completed questionnaires about their family demographics, their child's technology use, and the child's daily routines and social interactions. Findings suggest children who experience fewer human interactions and greater technology exposure have smaller vocabularies than their peers who socialize more and use less technology, and this disparity becomes greater as children get older. Moreover, the number of social interactions moderates the link between SES, digital media, and vocabulary such that the negative impact of digital media on vocabulary for children from low SES households can be offset with increased social interactions. Together, this suggests that increasing the amount of human interactions may serve as a protective factor for vocabulary outcomes in a world where digital media use is prominent.

Mathematics Vocabulary and Problem-solving Skills of Grade 4 Pupils in Narvacan North District

This study assessed the levels of mathematics vocabulary and problem-solving skills among Grade IV learners in public elementary schools in Narvacan North District. The primary aim is to assess how well students understand and use mathematical terminology and their ability to apply this knowledge to solve mathematical problems. The research involved a sample of 366 Grade IV students, utilizing validated tests and problem-solving assessments to gather the needed data. Results indicate that moderate grasp of mathematical terms, there is notable variability and room for improvement. Furthermore, parents' educational attainment and learners' vocabulary levels are significantly related implying that higher parental education is modestly associated with better vocabulary outcomes. In terms of problem-solving skills, the findings show that learners also demonstrate moderate proficiency. Importantly, the analysis reveals that demographic factors such as age, and gender, and significantly related to problem-solving abilities, indicating that these skills are influenced more by other factors. The study concludes that enhancing instructional strategies and providing targeted support can significantly improve both vocabulary and problem-solving skills. Engaging parents in their children's education and offering additional resources can further bolster these efforts. Future research should explore other influential factors and effective interventions to support the mathematical development of Grade IV learners, thereby laying a stronger foundation for their continued academic success.

Cognitive demand in parent–child shared book reading and home language development among dual language learners in low-income immigrant families

Aims and objectives: The existing literature indicates that shared book reading is associated with benefits in children’s home language development. Parents play a significant role in shaping children’s language outcomes. The purpose of this study was to investigate the relations among the quality of parents’ shared book reading, children’s language output, receptive vocabulary, and expressive vocabulary outcomes in the home language of dual language learners (DLLs) to inform book reading practices that can support DLLs’ early home language development. Methodology: 36 Mexican American (43–67 months) and 31 Chinese American (38–70 months) DLLs and their mothers, who were home language dominant, were recruited from Head Start programs, which are federally funded programs that provide early childhood education to low-income children, in Northern California. Data and analysis: Utterances produced by the parents during parent–child shared book reading were coded for cognitive demand levels. DLLs’ home language expressive vocabulary and receptive vocabulary and information about parents’ demographics and parent–child shared reading frequency were collected. Correlations and hierarchical regression analyses were computed. Findings/conclusions: The findings demonstrated possible cultural differences in mothers’ book reading quality regarding cognitive demand. Although maternal statements and questions were not significantly associated with DLLs’ home language receptive and expressive vocabulary for both groups, asking yes/no, referential, and inferential questions were more likely to evoke more language output from DLLs. Originality: This study extends the literature on home language development of low-income DLLs during parent–child shared reading, as only a few studies have investigated the significance of shared reading in the home language. Significance/implications: The findings of this study yield important implications for parents’ shared reading practices with low-income DLLs. Using all levels of cognitively demanding speech and encouraging DLLs to talk during shared reading may benefit their home language development.

Music Exposure and Maternal Musicality Predict Vocabulary Development in Children with Cochlear Implants

Children with cochlear implants (CIs) exhibit large individual differences in vocabulary outcomes. We hypothesized that understudied sources of variance are amount of music engagement and exposure and maternal musicality. Additionally, we explored whether objective measures of music exposure captured from the CI data logs and parent reports about music engagement provide converging and/or complementary evidence, and whether these correlate with maternal musicality. Sixteen children with CIs (Mage = 16.7 months, SD = 7.7, range = 9.6–32.9) were tested before implantation and three, six, and 12 months post-CI activation. Music exposure throughout the first year post-activation was extracted from the CI data logs. Children’s vocabulary and home music engagement and maternal musicality were assessed using parent reports. Analyses revealed relatively low home music engagement and maternal musicality. Nonetheless, positive effects emerged for music exposure on children’s early receptive and expressive vocabulary and for maternal musicality on expressive vocabulary three months post-activation. Results underline the importance of combining automatic measures and parent reports to understand children’s acoustic environment and suggest that environmental music factors may affect early vocabulary acquisition in children with CIs. The presence of these effects despite poor music exposure and skills further motivates the involvement of children with CIs and their parents in music intervention programs.

Hearing aid wear time and its impact on vocabulary in preschoolers with moderately severe to profound hearing loss

Objective This study aimed to explore how the consistency of hearing aid (HA) use impacts vocabulary performance in children with moderately severe to profound hearing loss and determine the amount of HA use time associated with better vocabulary outcomes. Design Personal wear time percentage (WTP) was an indicator of HA use consistency, and the information on HA wear time was collected from both parent reports and datalogs. Pearson's correlations were performed to investigate the associations between hearing loss severity, WTP and vocabulary performance. Standard vocabulary scores among children below and above three WTP cutoff values (80%, 85%, and 90%) were examined to determine the WTP amount that yielded significantly better vocabulary outcomes. Study sample Forty-seven children aged 36–79 months and their caregivers. Results Both parent reports and datalogs WTP significantly correlated with vocabulary outcomes. Parent-reported WTP were found to be predictive of datalogs WTP. Apart from hearing thresholds, HA fitting age and maternal education level, datalogs WTP was a significant independent predictor of vocabulary performance. Children with ≥ 90% WTP were more likely to perform better on vocabulary tests than those with < 90% WTP. Conclusion The findings support the potential benefits of consistent HA use for vocabulary development.

A design-based implementation study of a preschool Spanish/English multi-tiered language curriculum / Estudio de implementación basada en el diseño de un currículum preescolar multinivel inglés/español

Implementation considerations should be integrated into the iterative development of educational innovations. The purpose of this design-based implementation research (DBIR) was to identify intervention components worthy of revision, examine the feasibility of a video manual and document barriers to the implementation of a multi-tiered dual-language instructional curriculum. Six teachers implemented the curriculum and provided feedback via structured interviews. Although four of the six teachers reported the intervention to be highly feasible, multi-tiered instruction did not align with the beliefs of two teachers. Teachers’ feedback combined with child-level narrative and vocabulary outcomes led to curriculum revisions and to the creation of additional implementation supports. Findings suggest system-level barriers influence the sustainability of multi-tiered instruction in early childhood settings.

Productive Word Knowledge Development and Its Relation to Informal Contact with English through Various Leisure Activities

Much of the previous research that has provided evidence for the relationship between engagement in out-of-class activities and vocabulary outcomes has focused on receptive word gains. However, little research has attempted to explore this relationship with productive word knowledge. Additionally, the contribution of various gaming genres to the relationship is particularly underexplored. The present mixed-method study fills these lacunas by employing a productive vocabulary levels test, a questionnaire, and semi-structured interviews to explore the relationship between 35 different leisure activities that English as a foreign language (EFL) learners engage in outside the classroom and their productive vocabulary growth. The study&amp;rsquo;s findings revealed that although learners frequently engaged in different activities, they spent most of their free time gaming, which contributed the most to productive word knowledge learning. Regression analysis showed that two gaming genres, massively multiplayer online role-playing games (MMORPGs) and first-person shooters, significantly predicted productive knowledge of words. Qualitative analysis demonstrated that, in general, the participants had a positive perception of informal engagement with English activities outside formal learning contexts.

Age of onset, motivation, and anxiety as predictors of grammar and vocabulary outcomes in English as a foreign language learners with developmental language disorder

IntroductionLike children with typical language development, their peers with developmental language disorder (DLD) are expected to learn English as a foreign language (EFL). For pupils without DLD, it is well-established that amount of informal exposure to English outside of the classroom, starting age of EFL instruction and motivation are strong positive predictors of EFL learning rate and/or achievement, whereas anxiety is negatively related to performance. This paper is the first attempt to investigate how these predictors of EFL performance operate in learners with DLD. MethodsParticipants were nineteen Dutch-speaking 7th graders with DLD learning English as a school subject at a specialist education facility in the Netherlands. English receptive grammar and receptive vocabulary were measured twice, with a four-month interval. Foreign language learning motivation, anxiety and (length and amount of) informal exposure to and instruction in English were measured via questionnaires. ResultsThe participants did not show any progress on English vocabulary and grammar. At Time 1, vocabulary and grammar scores were positively related to starting age of EFL instruction and negatively related to anxiety. For vocabulary, achievement was also positively predicted by attitudes towards English lessons. Only the relationship between starting age of instruction and vocabulary outcomes was visible at Time 2. Amount and length of informal exposure to English did not predict performance, which is in stark contrast to the patterns observed in EFL learners with typical language development. ConclusionsWe conclude that children with DLD benefit from a later onset of foreign language lessons, whereas length and amount of out-of-school exposure to English are less important in the context of DLD, possibly due to difficulty with implicit learning.

Family language policy and vocabulary of bilingual children across different ages

Family language policy explores planning of home language use and is thought to shape language acquisition. Historically, heritage languages have often been considered ‘low prestige’. In Israel, there are immigrants speaking English, a global lingua franca, as a heritage language. This study focuses on characterizing the language policies of this unique community. It explores how these policies affect bilingual children's language through the investigation of vocabulary. Data was collected via questionnaires from English-Hebrew bilingual children (n = 82, ages 5; 1–14; 1) and their parents. Children's receptive and expressive vocabulary was assessed in both languages. Results show that this group of heritage speakers is distinct as the heritage language is sometimes perceived as more important than the societal language. Nonetheless, parents adopt a balanced pro-bilingualism approach. English is considered instrumental in connecting with family. Hebrew is beneficial for communicating with the community. Statistically significant correlations indicate a directional relationship between family language policy and vocabulary. Multiple regression analyses explored the contribution of family language policy variables to vocabulary outcomes, controlling for chronological age and age of onset of bilingualism. Findings allude that the relationship is complex; speaking English at home may predict English, and encouraging English use with friends may negatively predict Hebrew.

The Effects of a Science and Social Studies Content Rich Shared Reading Intervention on the Vocabulary Learning of Preschool Dual Language Learners

This study examined the effects of a content-based shared book reading (SBR) intervention on receptive and expressive vocabulary outcomes of dual language learner (DLL) preschool children enrolled in two school districts in south Texas. Using SBR as the target of instruction, 50 preschool teachers and 298 preschoolers were randomly assigned at the class level to either a well-specified and scripted SBR condition or a comparison SBR condition. Children in the study were selected based on their scores on the school district administered and thereby archival Preschool Language Assessment Scales (Pre-LAS©) and determined to be at the Limited English Speaker (LES) level of English. Teachers in the intervention condition implemented the curriculum for 18 weeks in 5-day instructional cycles of about 20 minutes per day. Results revealed significant and robust effects on proximal measures of expressive and receptive vocabulary; whereas no significant effects on standardized measures were indicated. Limitations and implications are discussed.

Spoken Expressive Vocabulary in 2-Year-Old Children with Hearing Loss: A Community Study.

Through a cross-sectional community study of 2044 children aged 2 years, we (1) examine the impact of hearing loss on early spoken expressive vocabulary outcomes and (2) investigate how early intervention-related factors impact expressive vocabulary outcomes in children with hearing loss predominantly identified through universal newborn hearing screening. We used validated parent/caregiver-reported checklists from two longitudinal cohorts (302 children with unilateral or bilateral hearing loss, 1742 children without hearing loss) representing the same population in Victoria, Australia. The impact of hearing loss and amplification-related factors on vocabulary was estimated using g-computation and multivariable linear regression. Children with versus without hearing loss had poorer expressive vocabulary scores, with mean scores for bilateral loss 0.5 (mild loss) to 0.9 (profound loss) standard deviations lower and for unilateral loss marginally (0.1 to 0.3 standard deviations) lower. For children with hearing loss, early intervention and amplification by 3 months, rather than by 6 months or older, resulted in higher expressive vocabulary scores. Children with hearing loss demonstrated delayed spoken expressive vocabulary despite whole-state systems of early detection and intervention. Our findings align with calls to achieve a 1-2-3 month timeline for early hearing detection and intervention benchmarks for screening, identification, and intervention.

Childhood mental health difficulties mediate the long-term association between early-life adversity at age 3 and poorer cognitive functioning at ages 11 and 14.

Early-life adversity is associated with adverse mental health outcomes and poorer cognitive functioning in later development. However, little is known about how early-life adversity, mental health, and cognition affect one another or how the effects unfold over time. Here, we test the hypothesis that early-life adversity may lead to mental health challenges which in turn have adverse consequences for the development of cognitive abilities. In a large (N=13,287) longitudinal (5 wave) sample assessed at ages 3, 5, 7, 11 and 14, we use both path analysis approach and latent growth curve mediation model to study whether poorer mental health in childhood may mediate the effects of early-life adversity on later working memory and vocabulary outcomes. We found a significant total association between early-life adversity and poorer performance on working memory (β=.123, p < .001, [95% CI 0.106, 0.141]) and vocabulary scores (β=-.111, p < .001, [95% CI -0.129, -0.093]). Notably, current and previous mental health mediated a substantial proportion (working memory: 59%; vocabulary: 70%) of these effects. Further longitudinal modeling showed that early-life adversity has an enduring adverse effect on mental health, and that poorer mental health is associated with poorer cognitive performance later on in development. In a complementary analysis using latent growth curve mediation model, we found indirect associations between early-life adversity and working memory through baseline mental health at age 3 (intercept: β=.083, p < .001, [95% CI 0.072, 0.094]) and change in mental health across ages 3-11 (slope: β=-.012, p=.001, [95% CI -0.019, -0.005]). Likewise, baseline mental health at age 3 (intercept: β=-.095, p < .001, [95% CI -0.107, -0.083]) and change in mental health across ages 3-14 (slope: β=.007, p=.001, [95% CI 0.003, 0.011]) significantly and completely mediated the relation between early-life adversity and vocabulary outcome. These findings have important potential clinical and educational implications, because they suggest that academic and cognitive resilience may be supported through early mental health interventions in vulnerable children.

A review of the methodological characteristics of vocabulary interventions for emergent bilinguals in preschool to sixth grade

AbstractVocabulary is foundational for reading and strongly linked to emergent bilingual (EB) students' academic achievement. Given the few syntheses on vocabulary interventions that are focused on emergent bilinguals, this literature review appraises the existing research and thoroughly accounts for methodological characteristics across studies relating to sample, treatment, and outcomes. We further investigate vocabulary teaching approaches that elicit positive vocabulary outcomes for preschool through to sixth grade EBs. Relevant intervention studies were identified and analysed for the study's sample, measure, and treatment characteristics as well as significant intervention outcomes. Analyses reveal that for sample characteristics there was a large amount of non‐reported information and a predominance of homogeneous, Spanish‐speaking, low second language proficiency sampling. For measurement characteristics, studies emphasised decontextualised and breadth of vocabulary knowledge as well as receptive vocabulary knowledge through oral responses. Patterns in treatment characteristics showed a prominence of unaligned treatment conditions, few investigations of home language support on EBs' vocabulary outcomes, and effectiveness of balanced approaches. Future research should build on effective balanced approaches and explore closer aligned comparison conditions with greater use of EBs' home languages. Practitioners should provide holistic vocabulary instruction for EBs that incorporates home language support, multimedia support during reading, and independent reading, all of which should provide extended and repeated vocabulary exposure.