We present a large-scale study of a series of seven lessons designed to help young children learn English vocabulary as a foreign language using a social robot. The experiment was designed to investigate 1) the effectiveness of a social robot teaching children new words over the course of multiple interactions (supported by a tablet), 2) the added benefit of a robot's iconic gestures on word learning and retention, and 3) the effect of learning from a robot tutor accompanied by a tablet versus learning from a tablet application alone. For reasons of transparency, the research questions, hypotheses and methods were preregistered. With a sample size of 194 children, our study was statistically well-powered. Our findings demonstrate that children are able to acquire and retain English vocabulary words taught by a robot tutor to a similar extent as when they are taught by a tablet application. In addition, we found no beneficial effect of a robot's iconic gestures on learning gains.
This study confirms the hypothesis that measures of narrative macro-structure are not biased against children who have less experience with a particular language, like bilinguals. In addition, it indicates that using narratives to assess children's language abilities can support the identification of LI in both a monolingual and a bilingual context.
The aim of this longitudinal study is to evaluate 3 views on the relationship between nonword repetition and vocabulary: (i) the storage-based view that considers nonword repetition, a measure of phonological storage, as the driving force behind vocabulary development, (ii) the lexical restructuring view that considers improvements in nonword repetition as the result of vocabulary growth, and (iii) the "combined" view that assumes that both storage-based learning and lexical restructuring play a role, resulting in reciprocal relationships between nonword repetition and vocabulary during language development. Data are analyzed from 471 monolingual Dutch children who performed tasks assessing nonword repetition and vocabulary at yearly intervals, from ages 2 to 5. Latent Change Score (LCS) modeling of Item Response Theory-scaled scores was used to investigate the relationships between nonword repetition and vocabulary growth over time. Additionally, the statistical techniques used in earlier workcross-lagged and latent growth modeling-were applied to see whether the results changed as a function of the analytical technique used. Results from a bivariate LCS model showed positive reciprocal influences from nonword repetition on vocabulary between 2 and 5 years. Such positive cross-influences also emerged from the cross-lagged and latent growth models. Predictive relationships from vocabulary to nonword repetition were stronger than vice versa. These results indicate that both storage-based learning and lexical restructuring play a role in vocabulary learning, at least in early stages of language development, with the clearest support found for lexical restructuring.
The challenging task of establishing meaningful translanguaging in multilingual classrooms necessitates negotiation between different stakeholders. Such negotiation requires investigation of the contexts and ways in which translanguaging may be implemented as a suitable teaching strategy. The aim of the current study was to elicit practical and pedagogical issues of translanguaging in the classroom via interviews with three different groups of stakeholders: language education researchers, teachers, and multilingual learners. We visited four differently composed multilingual high schools from which concrete examples were recalled in semi-structured interviews on the topic of translanguaging with the selected stakeholders. Adopting an iterative study design, interviewees were presented with daily life examples from the school visits as well as statements from other stakeholder interviews. Their statements and reactions to the statements of others were recorded, qualitatively analysed and categorised. Overall, seven distinct pedagogical challenges concerning a translanguaging pedagogy emerged from the interview analysis: (1) Side effects; (2) Goal formulation; (3) Learning the language of schooling; (4) English and other semiotic resources;(5) Affective functions; (6) Effort; and (7) Confusion. These palpable pedagogic issues may be helpful in understanding how translanguaging in multilingual contexts can be implemented, thus bridging the gap between theory and practice.
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