The validity of LENA technology for assessing the linguistic environment and interactions of infants learning Hebrew and Arabic.
Construct validity
Criterion validity
Infant babbling
LENA system
Maternal education
Reliability
Semitic languages
Journal
Behavior research methods
ISSN: 1554-3528
Titre abrégé: Behav Res Methods
Pays: United States
ID NLM: 101244316
Informations de publication
Date de publication:
04 2023
04 2023
Historique:
accepted:
06
05
2022
medline:
26
4
2023
pubmed:
7
6
2022
entrez:
6
6
2022
Statut:
ppublish
Résumé
The present study assessed LENA's suitability as a tool for monitoring future language interventions by evaluating its reliability, construct validity, and criterion validity in infants learning Hebrew and Arabic, across low and high levels of maternal education. Participants were 32 infants aged 3 to 11 months (16 in each language) and their mothers, whose socioeconomic status (SES) was determined based on their years of education (H-high or L-low ME-maternal education). The results showed (1) good reliability for the LENA's automatic count on adult word count (AWC), conversational turns (CTC), and infant vocalizations (CVC), based on the positive associations and fair to excellent agreement between the manual and automatic counts; (2) good construct validity based on significantly higher counts for HME vs. LME and positive associations between LENA's automatic vocal assessment (AVA) and developmental questionnaire (DA) and age; and (3) good concurrent criterion validity based on the positive associations between the LENA counts for CTC, CVC, AVA, and DA and the scores on the preverbal parent questionnaire (PRISE). The present study supports the use of LENA in early intervention programs for infants whose families speak Hebrew or Arabic. The LENA could be used to monitor the efficacy of these programs as well as to provide feedback to parents on the amount of language experience their infants are getting and their progress in vocal production. The results also indicate a potential utility of LENA in assessing linguistic environments and interactions in Hebrew- and Arabic-speaking infants with developmental disorders, such as hearing impairment and cerebral palsy.
Identifiants
pubmed: 35668342
doi: 10.3758/s13428-022-01874-9
pii: 10.3758/s13428-022-01874-9
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1480-1495Informations de copyright
© 2022. The Psychonomic Society, Inc.
Références
Amir, O., & Grinfeld, D. (2011). Articulation rate in childhood and adolescence: Hebrew speakers. Language and Speech, 54(2), 225–240. https://doi.org/10.1177/0023830910397496
doi: 10.1177/0023830910397496
pubmed: 21848081
Belsky, J., Bell, B., Bradley, R. H., Stallard, N., & Stewart-Brown, S. L. (2007). Socioeconomic risk, parenting during the preschool years and child health age 6 years. European Journal of Public Health, 17(5), 508–513. https://doi.org/10.1093/eurpub/ckl261
doi: 10.1093/eurpub/ckl261
pubmed: 17170020
Bergelson, E., Amatuni, A., Dailey, S., Koorathota, S., & Tor, S. (2019). Day by day , hour by hour : Naturalistic language input to infants. Developmental Science, 22(1), 1–10. https://doi.org/10.1111/desc.12715
doi: 10.1111/desc.12715
Borden, G. J., Harris, K. S., & Raphael, L. J. (2003). Speech science primer : Physiology, acoustics, and perception of speech (4th ed.). Lippincott Williams & Wilkins.
Busch, T., Sangen, A., Vanpoucke, F., & van Wieringen, A. (2017). Correlation and agreement between language ENvironment analysis (LENA
doi: 10.3758/s13428-017-0960-0
Canault, M., Le Normand, M.-T., Foudil, S., Loundon, N., & Thai-Van, H. (2015). Reliability of the language ENvironment analysis system (LENA
doi: 10.3758/s13428-015-0634-8
Caskey, M., Stephens, B., Tucker, R., & Vohr, B. (2011). Importance of parent talk on the development of preterm infant vocalizations. Pediatrics, 128, 910–916. https://doi.org/10.1542/peds.2011-0609
doi: 10.1542/peds.2011-0609
pubmed: 22007020
Caskey, M., & Vohr, B. (2013). Assessing language and language environment of high-risk infants and children: a new approach. Acta Paediatrica, 102, 451–461. https://doi.org/10.1111/apa.12195
doi: 10.1111/apa.12195
pubmed: 23397889
Cicchetti, D. V. (1994). Guidelines, criteria, and rules of thumb for evaluating normed and standardized assessment instruments in psychology. Psychological Assessment, 6(4), 284–290. https://doi.org/10.1037/1040-3590.6.4.284
doi: 10.1037/1040-3590.6.4.284
Cippone, P., Cuda, D., Benvenuti, M., Murri, A., & De Fillipis, A. (2006). Prelexical language development: PRISE and IT-MAIS questionnaires normative data in the first year of life. Paper presented at the Eighth European Symposium on Pediatric Cochlear Implantation, Lido di Venezia, Italy.
Clopper, C. G. (2002). Frequency of stress patterns in English: A computational analysis. IULC Working Papers, 2(1), 1–9.
Cohen, J. (1988). Statistical power analysis for the behavioral science ((2nd ed.) Retrieved from http://library1.nida.ac.th/termpaper6/sd/2554/19755.pdf .
Cristia, A., Bulgarelli, F., & Bergelson, E. (2020a). Accuracy of the language environment analysis system segmentation and metrics: A systematic review. Journal of Speech, Language, and Hearing Research, 63(4), 1093–1105. https://doi.org/10.1044/2020_JSLHR-19-00017
doi: 10.1044/2020_JSLHR-19-00017
pubmed: 32302262
pmcid: 7242991
Cristia, A., Lavechin, M., Scaff, C., Soderstrom, M., Rowland, C., Räsänen, O., & Bergelson, E. (2020b). A thorough evaluation of the language environment analysis (LENA) system. Behavior Research Methods. https://doi.org/10.3758/s13428-020-01393-5
Dwyer, A., Jones, C., Davis, C., Kitamura, C., & Ching, T. Y. C. (2019). Maternal education influences Australian infants’ language experience from six months. Infancy, 24(1), 90–100. https://doi.org/10.1111/infa.12262
doi: 10.1111/infa.12262
pubmed: 32677259
Elo, H. (2016). Acquiring language as a twin. Twin children´s early health, social environment and emerging language skills. University of Tampere.
Farran, L. K., Lee, C. C., Yoo, H., & Oller, D. K. (2016). Cross-cultural register differences in infant-directed speech: An initial study. PLoS One, 11(3), 1–14. https://doi.org/10.1371/journal.pone.0151518
doi: 10.1371/journal.pone.0151518
Fernald, A., Marchman, V. A., & Weisleder, A. (2013). SES differences in language processing skill and vocabulary are evident at 18 months. Developmental Science, 16(2), 234–248. https://doi.org/10.1111/desc.12019
doi: 10.1111/desc.12019
pubmed: 23432833
Ford, M., Baer, C. T., Xu, D., Yapanel, U., & Gray, S. (2008). The LENA language environment analysis system: Audio specifications of the DLP-0121. LENA Foundation technical report, LTR-03-2(September), 1–8.
Ganek, H., & Eriks-Brophy, A. (2018a). Language ENvironment analysis (LENA) system investigation of day long recordings in children: A literature review. Journal of Communication Disorders, 72(November 2016), 77–85. https://doi.org/10.1016/j.jcomdis.2017.12.005
doi: 10.1016/j.jcomdis.2017.12.005
pubmed: 29402382
Ganek, H., Smyth, R., Nixon, S., & Eriks-Brophy, A. (2018). Using the language ENvironment analysis (LENA) system to investigate cultural differences in conversational turn count. Journal of Speech, Language, and Hearing Research, 61(9), 2246–2258. https://doi.org/10.1044/2018_jslhr-l-17-0370
doi: 10.1044/2018_jslhr-l-17-0370
pubmed: 30076420
Ganek, H. V., & Eriks-Brophy, A. (2018b). A concise protocol for the validation of language ENvironment analysis (LENA) conversational turn counts in Vietnamese. Communication Disorders Quarterly, 39(2), 371–380. https://doi.org/10.1177/1525740117705094
doi: 10.1177/1525740117705094
Gilkerson, J, & Richards, J. A. (2008). The LENA Developmental Snapshot. LENA Foundation Technical Report, LTR-07-2(September 2008), 1–7.
Gilkerson, J, & Richards, J. A. (2009). Impact of adult talk, conversational turns, and TV during the critical 0-4 years of child development. In The Power of Talk (2nd ed., Pp. 1–36). LENA Foundation Technical Report.
Gilkerson, J., & Richards, J. A. (2020). A guide to understanding the design and purpose of the LENA ® system. LENA Foundation Technical Report, LTR-1, 2(July 2020), 1–18.
Gilkerson, J, Coulter, K. K., & Richards, J. A. (2008). Transcriptional Analyses of the LENA Natural Language Corpus. LENA Foundation Technical Report, LTR-06-2(September 2008), 1–11.
Gilkerson, J., Zhang, Y., Xu, D., Richards, J. A., & , Xu, X., Jiang, F., … Topping, K. (2015). Evaluating language environment analysis system performance for Chinese: A pilot study in Shanghai. JSLHR, 58(April), 445–452. https://doi.org/10.1044/2015 .
doi: 10.1044/2015
pubmed: 25614978
Gilkerson, J., Richards, J. A., Warren, S. F., Montgomery, J. K., Greenwood, C. R., Oller, D. K., & Paul, T. D. (2017). Mapping the early language environment using all-day recordings and automated analysis. American Journal of Speech-Language Pathology, 26, 248–265. https://doi.org/10.1044/2016_AJSLP-15-0169
doi: 10.1044/2016_AJSLP-15-0169
pubmed: 28418456
pmcid: 6195063
Greenwood, C., Thiemann-Bourque, K., Walker, D., Buzhardt, J., & Gilkerson, J. (2010). Assessing children’s home language environments using automatic speech recognition technology. Communication Disorders Quarterly, 32(2), 83–92. https://doi.org/10.1177/1525740110367826
doi: 10.1177/1525740110367826
Hart, B., & Risley, T. (1995). Meaningful differences in the everyday experience of young american children. Paul H. Brookes Publishing Co., Inc..
Hart, B., & Risley, T. R. (2003a). Meaningful differences in the everyday experience of young American children (4th ed.). Baltimore, MD, USA: Paul H Brookes Publishing.
Hart, B., & Risley, T. R. (2003b). The early catastrophe: The 30 million word gap by age 3. American Educator, 27(4), 6–9.
Hetzron, R., & Kaye, A. S. (2009). Semitic languages. In B. Comrie (Ed.), The world’s major languages (second (pp. 551–593). : Taylor & Francis Group.
Hillenbrand, J., Getty, L. A., Clark, M. J., & Wheeler, K. (1995). Acoustic characteristics of American English vowels. The Journal of the Acoustical Society of America, 97(5), 3099–3111. https://doi.org/10.1121/1.411872
doi: 10.1121/1.411872
pubmed: 7759650
Joint Committee on Infant Hearing (JCIH). (2000). Year 2000 position statement: Principles and guidelines for early hearing detection and intervention programs. American Journal of Audiology, 9, 9–29.
doi: 10.1044/1059-0889(2000/005)
Kishon-Rabin, L., & Rosenhouse, J. (2000). Speech perception test for Arabic-speaking children. International Journal of Audiology, 39(5), 269–277. https://doi.org/10.3109/00206090009073091
doi: 10.3109/00206090009073091
Kishon-Rabin, L, & Segal, O. (2016). Beyond hearing: Use of parent questionnaires for assessing auditory functioning in hearing-impaired infants. In L. Eisenberg (Ed.), Clinical Management of Children with Cochlear implants (2nd ed., pp. 373–402). : Plural Publishing, Inc.
Kishon-Rabin, L., Taitelbaum, R., Tobin, Y., & Hildesheimer, M. (1999). The effect of partially restored hearing on speech production of postlingually deafened adults with multichannel cochlear implants. The Journal of the Acoustical Society of America, 106(5), 2843–2857. https://doi.org/10.1121/1.428109
doi: 10.1121/1.428109
pubmed: 10573900
Kishon-Rabin, L, Taitelbaum-Swead, & Segal, O. (2009). Prelexical infant scale evaluation: From vocalization to audition in hearing and hearing-impaired infants. In L. S. Eisenberg (Ed.), Clinical Management of Children with Cochlear implants (p. 325). Plural Publishing, Inc.
Kishon-Rabin, L., Taitelbaum-Swead, R., Ezrati-Vinacour, R., & Hildesheimer, M. (2005a). Prelexical vocalization in normal hearing and hearing-impaired infants before and after cochlear implantation and its relation to early auditory skills. Ear and Hearing, 26(4 SUPPL). https://doi.org/10.1097/00003446-200508001-00004
Kishon-Rabin, L., Kochva, R., Kigel, S., Rotshtein, S., & Ari-Even Roth, D. (2005b). The effect of number of perceptual categories on identification functions of non-speech stimuli and the relationship to categorization of hebrew voicing. Journal of Basic Clinical PHysiology and Pharmacology, 16(2–3), 173–188.
Kishon-Rabin, L., Harel, T., Hildesheimer, M., & Segal, O. (2010). Listening preference for the native language compared to an unfamiliar language in hearing and hearing-impaired infants after cochlear implantation. Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology, 31(8), 1275–1280. https://doi.org/10.1097/MAO.0b013e3181f2f45d
doi: 10.1097/MAO.0b013e3181f2f45d
Kishon-Rabin, L., Kuint, J., Hildesheimer, M., & Ari-Even Roth, D. (2015). Delay in auditory behaviour and preverbal vocalization in infants with unilateral hearing loss. Developmental Medicine and Child Neurology, 57(12), 1129–1136. https://doi.org/10.1111/dmcn.12812
doi: 10.1111/dmcn.12812
pubmed: 26058353
Koo, T. K., & Li, M. Y. (2016). A guideline of selecting and reporting Intraclass correlation coefficients for reliability research. Journal of Chiropractic Medicine, 15(2), 155–163. https://doi.org/10.1016/j.jcm.2016.02.012
doi: 10.1016/j.jcm.2016.02.012
pubmed: 27330520
pmcid: 4913118
Legerstee, M., Pomerleau, A., Malcuit, G., & Feider, H. (1987). The development of infants’ responses to people and a doll: Implications for research in communication. Infant Behavior and Development, 10(1), 81–95. https://doi.org/10.1016/0163-6383(87)90008-7
doi: 10.1016/0163-6383(87)90008-7
Lehet, M., Arjmandi, M. K., Dilley, L. C., Roy, S., & Houston, D. (2018). Fidelity of automatic speech processing for adult speech classifications using the language ENvironment analysis ( LENA ) system. Proceedings of Interspeech, (October), 3–7, https://doi.org/10.13140/RG.2.2.35463.24487 .
Most, T., Amir, O., & Tobin, Y. (2000). The Hebrew vowel system: Raw and normalized acoustic data. Language and Speech, 43(Pt 3), 295–308. https://doi.org/10.1177/00238309000430030401
doi: 10.1177/00238309000430030401
pubmed: 11216297
Newman, D., & Verhoeven, J. (2002). Frequency analysis of Arabic vowels in connected speech. Antwerp Papers in Linguistics., 44(February), 77–87 Retrieved from http://dro.dur.ac.uk/4419/1/35758.pdf
Oetting, J. B., Hartfield, L. R., & Pruitt, S. L. (2009). Exploring LENA as a tool for researchers and clinicians. ASHA Leader, 14(6), 20. https://doi.org/10.1044/leader.ftr3.14062009.20
doi: 10.1044/leader.ftr3.14062009.20
Oller, D. K. (2000). The emergence of the speech capacity. NJ: Laurence Erlbaum Associates, Inc, Publishers.
Oller, D. K., Niyogi, P., Gray, S., Richards, J. A., Gilkerson, J., Xu, D., Yapanel U., & Warren S. F. (2010). Automated vocal analysis of naturalistic recordings from children with autism, language delay, and typical development. Proceedings of the National Academy of Sciences of the United States of America, 107(30), 13354–13359. https://doi.org/10.1073/pnas.1003882107
doi: 10.1073/pnas.1003882107
pubmed: 20643944
pmcid: 2922144
Pae, S., Yoon, H., Seol, A., Gilkerson, J., Richards, J. A., Ma, L., & Topping, K. (2016). Effects of feedback on parent-child language with infants and toddlers in Korea. First Language, 36(6), 549–569. https://doi.org/10.1177/0142723716649273
doi: 10.1177/0142723716649273
Piot, L., Havron, N., & Cristia, A. (2021). Socioeconomic status correlates with measures of language environment analysis (LENA) system: A meta-analysis. Journal of child language, (June). https://doi.org/10.1017/S0305000921000441 .
Ramírez, F. N., Hippe, D. S., & Kuhl, P. K. (2021). Comparing automatic and manual measures of parent–infant conversational turns: A word of caution. Child Development, 92(2), 672–681. https://doi.org/10.1111/cdev.13495
doi: 10.1111/cdev.13495
Raphael, L., Tobin, Y., Faber, A., Most, T., Kollia, H. B., & Milstein, D. (1995). Intermediate values of voice onset time. Producing Speech: Contemporary Issues: For Katherine Safford Harris, 117–127.
Ravid, D. (2012a). Morpho-orthographic infrastructure. In spelling morphology: The psycholinguistics of Hebrew spelling (Vol. 3, pp. 97–114). https://doi.org/10.1007/978-1-4419-0588-8 .
Ravid, D. (2012b). Root and function letters. In spelling morphology: The psycholinguistics of Hebrew spelling (Vol. 8, pp. 115–128). https://doi.org/10.1007/978-1-4419-0588-8 .
Richards, J. A., Gilkerson, J., Paul, T., & Xu, D. (2009). The LENA automatic vocalization assessment. LENA Foundation technical report, LTR-08-01(September 2008), 1–20.
Richards, J. A., Xu, D., Gilkerson, J., Yapanel, U., Gray, S., & Paul, T. (2017). Automated assessment of child vocalization development using LENA. JSLHR, 60(7), 1–17.
Robb, M., Maclagen, M. A., & Chen, Y. (2004). Speaking rates of American and NewZealand varieties of English. Clinical Linguistics & Phonetics, 18, 1–15.
doi: 10.1080/0269920031000105336
Romeo, R. R., Leonard, J. A., Robinson, S. T., West, M. R., Mackey, A. P., Rowe, M. L., & Gabrieli, J. D. E. (2018a). Beyond the 30-million-word gap: Children’s conversational exposure is associated with language-related brain function. Psychological Science, 095679761774272. https://doi.org/10.1177/0956797617742725
Romeo, R. R., Segaran, J., Leonard, J. A., Robinson, S. T., West, M. R., Mackey, A. P., & Gabrieli, J. D. E. (2018b). Language exposure relates to structural neural connectivity in childhood. Journal of Neuroscience, 38(36), 7870–7877. https://doi.org/10.1523/JNEUROSCI.0484-18.2018
doi: 10.1523/JNEUROSCI.0484-18.2018
pubmed: 30104336
Romeo, R. R., Leonard, J. A., Grotzinger, H. M., Robinson, S. T., Takada, M. E., Mackey, A. P., & Gabrieli, J. D. E. (2021). Neuroplasticity associated with changes in conversational turn-taking following a family-based intervention. Developmental Cognitive Neuroscience, 49, 100967. https://doi.org/10.1016/j.dcn.2021.100967
doi: 10.1016/j.dcn.2021.100967
pubmed: 34052580
pmcid: 8175277
Sangen, A., van Wieringen, A., Wouters, J., & Desloovere, C. (2018). Toddlers with single sided deafness and a cochlear implant. The Journal of Health Science, 8(2), 346–347.
Satori, H., Harti, M., & Chenfour, N. (2007). Introduction to Arabic speech recognition using CMUSphinx system. Information and Communication Technologies International Symposium Proceeding (ICTIS), 2, 4 Retrieved from http://arxiv.org/abs/0704.2083
Segal, O., & Kishon-Rabin, L. (2012). Evidence for language-specific influence on the preference of stress patterns in infants learning an iambic language (Hebrew). Journal of Speech, Language & Hearing Research, 55(5), 1329–1341. https://doi.org/10.1044/1092-4388(2012/11-0087)
doi: 10.1044/1092-4388(2012/11-0087)
Segal, O., & Kishon-Rabin, L. (2018). Influence of the native language on sensitivity to lexical stress. Studies in Second Language Acquisition, 1–28. https://doi.org/10.1017/S0272263117000390
Segal, O., Nir-Sagiv, B., Kishon-Rabin, L., & Ravid, D. (2009). Prosodic patterns in Hebrew child-directed speech. Journal of Child Language, 36(3), 629–656. https://doi.org/10.1017/S030500090800915X
doi: 10.1017/S030500090800915X
pubmed: 19006600
Segal, O., Hejli-Assi, S., & Kishon-Rabin, L. (2016a). The effect of listening experience on the discrimination of /Ba/ and /pa/ in Hebrew-learning and Arabic-learning infants. Infant Behavior and Development, 42, 86–99. https://doi.org/10.1016/j.infbeh.2015.10.002
doi: 10.1016/j.infbeh.2015.10.002
pubmed: 26708235
Segal, O., Houston, D., & Kishon-Rabin, L. (2016b). Auditory discrimination of lexical stress patterns in hearing-impaired infants with Cochlear implants compared with Normal hearing: Influence of acoustic cues and listening experience to the ambient language. Ear and Hearing, 37(2), 225–234. https://doi.org/10.1097/AUD.0000000000000243
doi: 10.1097/AUD.0000000000000243
pubmed: 26627470
Sluijter, A. M. C., van Heuven, V. J., & Pacilly, J. J. A. (1997). Spectral balance as a cue in the perception of linguistic stress. The Journal of the Acoustical Society of America, 101(1), 503–513. https://doi.org/10.1121/1.417994
doi: 10.1121/1.417994
pubmed: 9000741
Soderstrom, M., & Wittebolle, K. (2013). When do caregivers talk? The influences of activity and time of day on caregiver speech and child vocalizations in two childcare environments. PLoS One, 8(11). https://doi.org/10.1371/journal.pone.0080646
Suskind, D., Leffel, K. R., Hernandez, M. W., Sapolich, S. G., Suskind, E., Kirkham, E., & Meehan, P. (2013). An exploratory study of “quantitative linguistic feedback”: Effect of lena feedback on adult language production. Communication Disorders Quarterly, 34, 199–209. https://doi.org/10.1177/1525740112473146
doi: 10.1177/1525740112473146
Suskind, D. L., Leffel, K. R., Graf, E., Hernandez, M. W., Gunderson, E. A., Sapolich, S. G., & Levine, S. C. (2015). A parent-directed language intervention for children of low socioeconomic status: a randomized controlled pilot study. Journal of Child Language, 1–41. https://doi.org/10.1017/S0305000915000033
Taitelbaum-swead, R., Hildesheimer, M., & Kishon-Rabin, L. (2003). Effect of voice onset time (VOT), stop burst and vowel on the perception of voicing in Hebrew stops: Preliminary results. Journal of Basic Clinical PHysiology and Pharmacology, 114(2), 165–176.
Trevarthen, C. (1979). Communication and cooperation in early infancy: A description of primary intersubjectivity. In M. Bullowa (Ed.), before speech: The beginning of interpersonal communication (pp. 321–347).
VanDam, M., & Silbert, N. H. (2016). Fidelity of automatic speech processing for adult and child talker classifications. PLoS One, 11(8), 1–13. https://doi.org/10.1371/journal.pone.0160588
doi: 10.1371/journal.pone.0160588
Vandam, M., Ambrose, S. E., & Moeller, M. P. (2012). Quantity of parental language in the home environments of hard-of-hearing 2-year-olds. Journal of Deaf Studies and Deaf Education. https://doi.org/10.1093/deafed/ens025
Vohr, B. R., Topol, D., Watson, V., St Pierre, L., & Tucker, R. (2014). The importance of language in the home for school-age children with permanent hearing loss. Acta Paediatrica, 103, 62–69. https://doi.org/10.1111/apa.12441
doi: 10.1111/apa.12441
pubmed: 24117984
Wang, Y., Hartman, M., Aziz, N. A. A., Arora, S., Shi, L., & Tunison, E. (2017). A systematic review of the use of LENA technology. American Annals of the Deaf, 162(3), 295–311. https://doi.org/10.1353/aad.2017.0028
doi: 10.1353/aad.2017.0028
pubmed: 28824021
Wang, Y., Williams, R., Dilley, L., & Houston, D. M. (2020). A meta-analysis of the predictability of LENA
doi: 10.1016/j.dr.2020.100921
Warren, S. F., Gilkerson, J., Richards, J.A., & , Oller, D. K., Xu, D., Yapanel, U., & Gray, S. (2010). What automated vocal analysis reveals about the vocal production and language learning environment of young children with autism. Journal of Autism and Developmental Disorders, 40(5), 555–569. https://doi.org/10.1007/s10803-009-0902-5 .
doi: 10.1007/s10803-009-0902-5
pubmed: 19936907
Weisleder, A., & Fernald, A. (2013). Talking to children matters: Early language experience strengthens processing and builds vocabulary. Psychological Science, 24(11), 2143–2152. https://doi.org/10.1177/0956797613488145
doi: 10.1177/0956797613488145
pubmed: 24022649
Wood, C., Diehm, E. A., & Calleder, M. F. (2016). An Investigation of Language Environment Analysis Measures for Spanish–English Bilingual Preschoolers From Migrant Low- Socioeconomic-Status Backgrounds. Language, Speech, and Hearing Services in Schools, 47, 123–134. https://doi.org/10.1044/2015
doi: 10.1044/2015
pubmed: 27019230
Xu, D., Yapanel, U., & Gray, S. (2009). Reliability of the LENA
Xu, D., Zhang, Y., Mao, H., Xin, Y., & Xiao, L. (2012). The correlation of infants and toddlers’ responsiveness with language and cognitive development in Han- language families. Chinese Journal of Evidence-Based Pediatrics, 6, 435–439.
Yoder, P. J., Oller, D. K., Richards, J. A., Gray, S., & Gilkerson, J. (2013). Stability and validity of an automated measure of vocal development from day-long samples in children with and without autism spectrum disorder. Autism Research, 6(February), 103–107. https://doi.org/10.1002/aur.1271
doi: 10.1002/aur.1271
pubmed: 23436778
pmcid: 3664259
Yoo, H., Bowman, D. A., & Oller, D. K. (2018). The origin of protoconversation: An examination of caregiver responses to cry and speech-like vocalizations. Frontiers in Psychology, 9(AUG). https://doi.org/10.3389/fpsyg.2018.01510