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COVID-19 first lockdown as a window into language acquisition: Associations between caregiver-child activities and vocabulary gains
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In: [PsyArXiv preprint] COVID-19 first lockdown as a window into language acquisition: associations between caregiver-child activities and vocabulary gains (2022)
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COVID-19 first lockdown as a window into language acquisition : associations between caregiver-child activities and vocabulary gains
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Investigating the nature of infants' lexical speed of processing
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In: Proceedings of the Annual Meeting of the Cognitive Science Society, vol 43, iss 43 (2021)
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Web-CDI: A system for online administration of the MacArthur-Bates Communicative Development Inventories ...
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Web-CDI: A system for online administration of the MacArthur-Bates Communicative Development Inventories ...
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International Centre for Language and Communicative Development: Training Study - Children's Acquisition of Complex Questions, 2017-2018 ...
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Chunks of phonological knowledge play a significant role in children’s word learning and explain effects of neighborhood size, phonotactic probability, word frequency and word length ...
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| 8 |
Investigating the nature of infants' lexical speed of processing ...
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A thorough evaluation of the Language Environment Analysis (LENA) system
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In: Behav Res Methods (2021)
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Do the Eyes Have It? A Systematic Review on the Role of Eye Gaze in Infant Language Development
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In: Front Psychol (2021)
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Contributions of Abstract Extratextual Talk and Interactive Style to Preschoolers’ Vocabulary Development
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A thorough evaluation of the Language Environment Analysis (LENATM) system
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In: ISSN: 1554-351X ; EISSN: 1554-3528 ; Behavior Research Methods ; https://hal.archives-ouvertes.fr/hal-02989519 ; Behavior Research Methods, Psychonomic Society, Inc, 2020, ⟨10.31219/osf.io/mxr8s⟩ (2020)
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Abstract:
International audience ; In the previous decade, dozens of studies involving thousands of children across several research disciplines have made use of a combined daylong audio-recorder and automated algorithmic analysis called the LENA^®^ system, which aims to assess children's language environment. While the system's prevalence in the language acquisition domain is steadily growing, there are only scattered validation efforts, on only some of its key characteristics. Here, we assess the LENA^®^ system's accuracy across all of its key measures: speaker classification, Child Vocalization Counts (CVC), Conversational Turn Counts (CTC), and Adult Word Counts (AWC). Our assessment is based on manual annotation of clips that have been randomly or periodically sampled out of daylong recordings, collected from (a) populations similar to the system's original training data (North American English-learning children aged 3-36 months), (b) children learning another dialect of English (UK), and (c) slightly older children growing up in a different linguistic and socio-cultural setting (Tsimane' learners in rural Bolivia). We find reasonably high accuracy in some measures (AWC, CVC), with more problematic levels of performance in others (CTC, precision of male adults and other children). Statistical analyses do not support the view that performance is worse for children who are dissimilar from the LENA^®^ original training set. Whether LENA^®^ results are accurate enough for a given research, educational, or clinical application depends largely on the specifics at hand. We therefore conclude with a set of recommendations to help researchers make this determination for their goals.
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Keyword:
[INFO.INFO-CL]Computer Science [cs]/Computation and Language [cs.CL]
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URL: https://hal.archives-ouvertes.fr/hal-02989519
https://doi.org/10.31219/osf.io/mxr8s
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A thorough evaluation of the Language Environment Analysis (LENA) system
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In: ISSN: 1554-351X ; EISSN: 1554-3528 ; Behavior Research Methods ; https://hal.archives-ouvertes.fr/hal-03095997 ; Behavior Research Methods, Psychonomic Society, Inc, 2020, 53 (2), pp.467-486. ⟨10.3758/s13428-020-01393-5⟩ (2020)
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Carers' talk to children with language difficulties during shared book reading and play 2016-2018 ...
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Shared book reading and the development of phonological awareness 2016-2018 ...
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| 20 |
Language disorders and autism: Implications for usage-based theories of language development
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