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Language exposure and phonological short-term memory as predictors of majority language vocabulary and phonological awareness in dual language learning

Published online by Cambridge University Press:  28 September 2020

Enni Vaahtoranta*
Affiliation:
Department of Educational Science, University of Regensburg
Sebastian Suggate
Affiliation:
Department of Educational Science, University of Regensburg
Jan Lenhart
Affiliation:
Department of Psychology, University of Wuerzburg
Wolfgang Lenhard
Affiliation:
Department of Psychology, University of Wuerzburg
*
Address for correspondence: Enni Vaahtoranta, E-mail: [email protected]

Abstract

Previous work suggests that child-internal and -external factors influence dual language learning (DLL), although more work is needed – to clarify the role of phonological short-term memory (PSTM) and language exposure in particular. Accordingly, we investigated the role of language exposure and PSTM in phonological awareness and receptive and expressive vocabulary development in the majority language in DLL. PSTM was measured with both a language-specific and language-universal nonword repetition task (NWR). Sixty-five DLL preschoolers were assessed twice, five months apart. Results show that maternal majority-language proficiency as well as language-specific and universal NWR predicted all outcomes, whereas length of exposure to the majority language only predicted receptive and expressive vocabulary. Current exposure did not predict any outcome. The findings extend previous research on child-internal and child-external factors as predictors of DLL to phonological awareness and language-universal NWR.

Type
Research Article
Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press

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References

Alloway, TP, Gathercole, SE, Willis, C and Adams, AM (2004) A structural analysis of working memory and related cognitive skills in young children. Journal of Experimental Child Psychology 87, 85106. https://doi.org/10.1016/j.jecp.2003.10.002.CrossRefGoogle ScholarPubMed
Anthony, JL and Francis, DJ (2005) Development of phonological awareness. Current Directions in Psychological Science 14, 255259. https://doi.org/10.1111/j.0963-7214.2005.00376.x.CrossRefGoogle Scholar
Anthony, JL, Solari, EJ, Williams, JM, Schoger, KD, Zhang, Z, Branum-Martin, L and Francis, DJ (2009) Development of bilingual phonological awareness in Spanish-speaking English language learners: The roles of vocabulary, letter knowledge, and prior phonological awareness. Scientific Studies of Reading 13, 535564. https://doi.org/10.1080/10888430903034770.CrossRefGoogle Scholar
Ardasheva, Y, Tretter, TR and Kinny, M (2012) English language learners and academic achievement: Revisiting the threshold hypothesis. Language Learning 62, 769812. https://doi.org/10.1111/j.1467-9922.2011.00652.x.CrossRefGoogle Scholar
Baddeley, A (2003) Working memory and language: An overview. Journal of Communication Disorders 36, 189208. https://doi.org/10.1016/S0021-9924(03)00019-4.CrossRefGoogle ScholarPubMed
Baker, C (2011) Foundations of bilingual education and bilingualism, 5th Edn. Bilingual education & bilingualism: Vol. 79. Bristol: Multilingual Matters.Google Scholar
Barac, R, Bialystok, E, Castro, D and Sanchez, M (2014) The cognitive development of young dual language learners: A critical review. Early Childhood Research Quarterly 29, 699714. https://doi.org/10.1016/j.ecresq.2014.02.003.CrossRefGoogle ScholarPubMed
Barton, K (2018) MuMIn: Multi-model inference. Retrieved from https://CRAN.R-project.org/package=MuMIn.Google Scholar
Bates, D, Mächler, M, Bolker, B and Walker, S (2015) Fitting linear mixed-effects models using lme4. Journal of Statistical Software 67. https://doi.org/10.18637/jss.v067.i01.CrossRefGoogle Scholar
Bialystok, E (2013) The impact of bilingualism on language and literacy development. In Bhatia, TK (eds), Blackwell handbooks in linguistics: Vol. 15. The handbook of bilingualism and multilingualism, 2nd Edn. Malden, MA.: Wiley-Blackwell, pp. 624648.Google Scholar
Bialystok, E, Majumder, S and Martin, MM (2003) Developing phonological awareness: Is there a bilingual advantage? Applied Psycholinguistics 24, 2744. https://doi.org/10.1017/S014271640300002X.CrossRefGoogle Scholar
Birdsong, D (2018) Plasticity, variability and age in second language acquisition and bilingualism. Frontiers in Psychology 9 : 81. https://doi.org/10.3389/fpsyg.2018.00081.CrossRefGoogle ScholarPubMed
Blom, E and Bosma, E (2016) The sooner the better? An investigation into the role of age of onset and its relation with transfer and exposure in bilingual Frisian-Dutch children. Journal of Child Language 43, 581607. https://doi.org/10.1017/S0305000915000574.CrossRefGoogle ScholarPubMed
Burgess, SR, Hecht, SA and Lonigan, CJ (2002) Relations of the home literacy environment (HLE) to the development of reading-related abilities: A one-year longitudinal study. Reading Research Quarterly 37, 408426. https://doi.org/10.1598/RRQ.37.4.4.CrossRefGoogle Scholar
Butler, Y (2013) Bilingualism/multilingualism and second-language acquisition. In Bhatia, TK (eds), Blackwell handbooks in linguistics: Vol. 15. The handbook of bilingualism and multilingualism, 2nd Edn. Malden, MA: Wiley-Blackwell, pp. 109136.Google Scholar
Caravolas, M and Bruck, M (1993) The effect of oral and written language input on children′s phonological awareness: A cross-linguistic study. Journal of Experimental Child Psychology 55, 130. https://doi.org/10.1006/jecp.1993.1001.CrossRefGoogle Scholar
Cattani, A, Abbot-Smith, K, Farag, R, Krott, A, Arreckx, F, Dennis, I and Floccia, C (2014) How much exposure to English is necessary for a bilingual toddler to perform like a monolingual peer in language tests? International Journal of Language & Communication Disorders 49, 649671. https://doi.org/10.1111/1460-6984.12082.CrossRefGoogle Scholar
Cheung, H, Chen, H.-C., Lai, CY, Wong, OC and Hills, M (2001) The development of phonological awareness: Effects of spoken language experience and orthography. Cognition 81, 227241. https://doi.org/10.1016/S0010-0277(01)00136-6.CrossRefGoogle ScholarPubMed
Chiat, S (2015) Non-word repetition. In Armon-Lotem, S, de Jong, J and Meir, N (eds), Assessing Multilingual Children: Disentangling Bilingualism from Language Impairment, 1st Edn. Bristol: Channel View Publications, pp. 125150.CrossRefGoogle Scholar
Coady, JA and Evans, JL (2008) Uses and interpretations of non-word repetition tasks in children with and without specific language impairments (SLI). International Journal of Language & Communication Disorders 43, 140. https://doi.org/10.1080/13682820601116485.CrossRefGoogle Scholar
Cohen, J, Cohen, P, West, SG and Aiken, LS (2003) Applied multiple regression/correlation analysis for the behavioral sciences, 3rd Edn. Mahwah, NJ: Lawrence Erlbaum Associates.Google Scholar
Cooper, DH, Roth, FP, Speece, DL and Schatschneider, C (2002) The contribution of oral language skills to the development of phonological awareness. Applied Psycholinguistics 23, 399416. https://doi.org/10.1017/S0142716402003053.CrossRefGoogle Scholar
Cromley, JG and Azevedo, R (2007) Testing and refining the direct and inferential mediation model of reading comprehension. Journal of Educational Psychology 99, 311325. https://doi.org/10.1037/0022-0663.99.2.311.CrossRefGoogle Scholar
Cunningham, AE and Stanovich, KE (1997) Early reading acquisition and its relation to reading experience and ability 10 years later. Developmental Psychology 33, 934945. https://doi.org/10.1037/0012-1649.33.6.934.CrossRefGoogle ScholarPubMed
De Carli, F, Dessi, B, Mariani, M, Girtler, N, Greco, A, Rodriguez, G, Salmon, L and Morelli, M (2015) Language use affects proficiency in Italian–Spanish bilinguals irrespective of age of second language acquisition. Bilingualism: Language and Cognition 18, 324339. https://doi.org/10.1017/S1366728914000054.CrossRefGoogle Scholar
De Houwer, A (2011) Language input environments and language development in bilingual acquisition. In Li, W (eds), Applied linguistics review: 2. Berlin, New York: De Gruyter Mouton, pp. 221240.Google Scholar
De Houwer, A (2018) The role of language input environments for language outcomes and language acquisition on young bilingual children. In Miller, D, Bayram, F, Rothman, J and Serratrice, L (eds), Studies in bilingualism: volume 54. Bilingual cognition and language: The state of the science across its subfields. Amsterdam, Philadelphia: John Benjamins Publishing Company, pp. 127153.CrossRefGoogle Scholar
Dickinson, DK, McCabe, A, Anastasopoulos, L, Peisner-Feinberg, E and Poe, MD (2003) The comprehensive language approach to early literacy: The interrelationships among vocabulary, phonological sensitivity, and print knowledge among preschool-aged children. Journal of Educational Psychology 95, 465481. https://doi.org/10.1037/0022-0663.95.3.465.CrossRefGoogle Scholar
Dufva, M, Niemi, P and Voeten, MJM (2001) The role of phonological memory, word recognition, and comprehension skills in reading development: From preschool to grade 2. Reading and Writing 14, 91117. https://doi.org/10.1023/A:1008186801932.CrossRefGoogle Scholar
Duursma, E, Romero-Conteras, S, Suber, A, Proctor, P, Snow, CE, August, D and Caldéron, M (2007) The role of home literacy and language environment on bilinguals’ English and Spanish vocabulary development. Applied Psycholinguistics 28, 171190. https://doi.org/10.1017/S0142716406070093.CrossRefGoogle Scholar
Endlich, D, Berger, N, Küspert, P, Lenhard, W, Marx, P, Weber, J and Schneider, W (2017) Würzburger Vorschultest: Erfassung schriftsprachlicher und mathematischer (Vorläufer-)Fertigkeiten und sprachlicher Kompetenzen im letzten Kindergartenjahr. Göttingen: Hogrefe.Google Scholar
Engel de Abreu, PMJ and Gathercole, SE (2012) Executive and phonological processes in second-language acquisition. Journal of Educational Psychology 104, 974986. https://doi.org/10.1037/a0028390.CrossRefGoogle Scholar
Engel de Abreu, PMJ, Gathercole, SE and Martin, R (2011) Disentangling the relationship between working memory and language: The roles of short-term storage and cognitive control. Learning and Individual Differences 21, 569574. https://doi.org/10.1016/j.lindif.2011.06.002.CrossRefGoogle Scholar
Farnia, F and Geva, E (2011) Cognitive correlates of vocabulary growth in English language learners. Applied Psycholinguistics 32, 711738. https://doi.org/10.1017/S0142716411000038.CrossRefGoogle Scholar
Federal Bureau of Statistics (2018a) Bevölkerung und Erwerbstätigkeit: Bevölkerung mit Migrationshintergrund. Ergebnisse des Mikrozensus 2017 [Population and employment: The immigrant population. Results from the Microcensus 2018]. https://www.destatis.de/DE/Publikationen/Thematisch/Bevoelkerung/MigrationIntegration/Migrationshintergrund.html (retrieved April 14, 2019).Google Scholar
Federal Bureau of Statistics (2018b) Statistisches Jahrbuch Deutschland 2018 [Statistical Yearbook of Germany 2018], 1st Edn. Wiesbaden: Statistisches Bundesamt.Google Scholar
Federal Bureau of Statistics (2018c) Anteil der Akademikerinnen bei 30- 34-Jährigen doppelt so hoch wie vor einer Generation [The proportion of academically qualified 30 to 34-year-olds is twice as high as in the previous generation]. https://www.destatis.de/DE/PresseService/Presse/Pressemitteilungen/2018/09/PD18_332_217.html (retrieved April 10, 2019).Google Scholar
Gathercole, S (2006) Nonword repetition and word learning: The nature of the relationship. Applied Psycholinguistics 27, 513543. https://doi.org/10.1017/S0142716406060383.CrossRefGoogle Scholar
Gathercole, VCM (2016) Factors moderating proficiency in bilingual speakers. In Nicoladis, E and Montanari, S (eds), Language and the human lifespan series. Bilingualism across the lifespan: Factors moderating language proficiency. Berlin, Washington, DC: De Gruyter Mouton, pp. 123136.Google Scholar
Gibson, TA, Oller, DK, Jarmulowicz, L and Ethington, CA (2012) The receptive-expressive gap in the vocabulary of young second-language learners: Robustness and possible mechanisms. Bilingualism: Language and Cognition 15, 102116. https://doi.org/10.1017/S1366728910000490.CrossRefGoogle ScholarPubMed
Gibson, TA, Peña, ED and Bedore, LM (2014) The receptive-expressive gap in bilingual children with and without primary language impairment. American Journal of Speech-Language Pathology 23, 655667. https://doi.org/10.1044/2014_AJSLP-12-0119.CrossRefGoogle ScholarPubMed
Golberg, H, Paradis, J and Crago, M (2008) Lexical acquisition over time in minority first language children learning English as a second language. Applied Psycholinguistics 29, 4165. https://doi.org/10.1017/S014271640808003X.CrossRefGoogle Scholar
Gorman, BK (2012) Relationships between vocabulary size, working memory, and phonological awareness in spanish-speaking English language learners. American Journal of Speech-Language Pathology 21, 109123. https://doi.org/10.1044/1058-0360(2011/10-0063 )CrossRefGoogle ScholarPubMed
Grimm, H, Aktas, M and Frevert, S (2010) Sprachentwicklungstest für drei- bis fünfjährige Kinder (2. Auflage). Diagnose von Sprachverarbeitungsfähigkeiten und auditiven Gedächtnisleistungen [Language development test for three- to five-year-old children (2nd ed.). Diagnosis of language processing and auditive memory abilities]. Göttingen: Hogrefe.Google Scholar
Gutiérrez-Clellen, VF (2002) Narratives in two languages: Assessing performance of bilingual children. Linguistics and Education 13, 175197. https://doi.org/10.1016/S0898-5898(01)00061-4.CrossRefGoogle Scholar
Gutiérrez-Clellen, VF and Kreiter, J (2003) Understanding child bilingual acquisition using parent and teacher reports. Applied Psycholinguistics 24, 267288. https://doi.org/10.1017/S0142716403000158.CrossRefGoogle Scholar
Hammer, CS, Davison, MD, Lawrence, FR and Miccio, AW (2009) The effect of maternal language on bilingual children's vocabulary and emergent literacy development during head start and kindergarten. Scientific Studies of Reading 13, 99121. https://doi.org/10.1080/10888430902769541.CrossRefGoogle ScholarPubMed
Hammer, CS, Hoff, E, Uchikoshi, Y, Gillanders, C, Castro, D and Sandilos, LE (2014) The language and literacy development of young dual language learners: A critical review. Early Childhood Research Quarterly 29, 715733. https://doi.org/10.1016/j.ecresq.2014.05.008.CrossRefGoogle ScholarPubMed
Hart, B and Risley, TR (1995) Meaningful differences in the everyday experience of young American children. Baltimore: P.H. Brookes.Google Scholar
Hoff, E (2003) The specificity of environmental influence: Socioeconomic status affects early vocabulary development via maternal speech. Child Development 74, 13681378. https://doi.org/10.1111/1467-8624.00612.CrossRefGoogle ScholarPubMed
Hoff, E, Core, C, Place, S, Rumiche, R, Senor, M and Parra, M (2012) Dual language exposure and early bilingual development. Journal of Child Language 39, 127. https://doi.org/10.1017/S0305000910000759.CrossRefGoogle ScholarPubMed
Huttenlocher, J, Waterfall, H, Vasilyeva, M, Vevea, J and Hedges, LV (2010) Sources of variability in children's language growth. Cognitive Psychology 61, 343365. https://doi.org/10.1016/j.cogpsych.2010.08.002.CrossRefGoogle ScholarPubMed
Hyltenstam, K and Abrahamsson, N (2000) Who can become native-like in a second language? All, some, or none? On the maturational constraints controversy in second language acquisition. Studia Linguistica 54, 150166. https://doi.org/10.1111/1467-9582.00056.Google Scholar
Jia, G and Fuse, A (2007) Acquisition of English grammatical morphology by native mandarin-speaking children and adolescents: Age-related differences. Journal of Speech, Language, and Hearing Research 50, 12801299. https://doi.org/10.1044/1092-4388(2007/090)CrossRefGoogle ScholarPubMed
Keller, K, Troesch, LM and Grob, A (2015) A large receptive-expressive gap in bilingual children. Frontiers in Psychology 6 : 1284, 19. https://doi.org/10.3389/fpsyg.2015.01284.CrossRefGoogle ScholarPubMed
Kim, Y.-S. (2009) Crosslinguistic influence on phonological awareness for Korean–English bilingual children. Reading and Writing 22, 843861. https://doi.org/10.1007/s11145-008-9132-z.CrossRefGoogle Scholar
Klassert, A and Gagarina, N (2010) Der Einfluss des elterlichen Inputs auf die Sprachentwicklung bilingualer Kinder: Evidenz aus russischsprachigen Migrantenfamilien in Berlin. Diskurs Kindheits- und Jugendforschung 4, 413425. https://doi.org/10.3224/diskurs.v5i4.4613.Google Scholar
Knoop-van Campen, CAN, Segers, E and Verhoeven, L (2018) How phonological awareness mediates the relation between working memory and word reading efficiency in children with dyslexia. Dyslexia 24, 156169. https://doi.org/10.1002/dys.1583.CrossRefGoogle ScholarPubMed
Kovelman, I, Baker, SA and Petitto, L.-A. (2008) Age of first bilingual language exposure as a new window into bilingual reading development. Bilingualism: Language and Cognition 11, 203223. https://doi.org/10.1017/S1366728908003386.CrossRefGoogle ScholarPubMed
Kuznetsova, A, Brockhoff, PB and Christensen, RHB (2017) lmerTest package: Tests in linear mixed effects models. Journal of Statistical Software 82, 126. https://doi.org/10.18637/jss.v082.i13.CrossRefGoogle Scholar
Lenhard, A, Lenhard, W, Segerer, R and Suggate, SP (2015) Peabody picture vocabulary test – Revision IV (German Adaption). Frankfurt am Main: Pearson Assessment.Google Scholar
Li, S (2015) The associations between language aptitude and second language grammar acquisition: A meta-analytic review of five decades of research. Applied Linguistics 36, 385408. https://doi.org/10.1093/applin/amu054.CrossRefGoogle Scholar
Mancilla-Martinez, J and Lesaux, NK (2011) Early home language use and later vocabulary development. Journal of Educational Psychology 103, 535546. https://doi.org/10.1037/a0023655.CrossRefGoogle Scholar
Marchman, VA and Bates, E (1994) Continuity in lexical and morphological development: A test of the critical mass hypothesis. Journal of Child Language 21, 339366. https://doi.org/10.1017/S0305000900009302.CrossRefGoogle ScholarPubMed
Marchman, VA, Martínez, LZ, Hurtado, N, Grüter, T and Fernald, A (2017) Caregiver talk to young Spanish-English bilinguals: comparing direct observation and parent-report measures of dual-language exposure. Developmental Science 20, 113. https://doi.org/10.1111/desc.12425.CrossRefGoogle ScholarPubMed
Metsala, JL (1999) Young children's phonological awareness and nonword repetition as a function of vocabulary development. Journal of Educational Psychology 91, 319. https://doi.org/10.1037/0022-0663.91.1.3.CrossRefGoogle Scholar
Michalczyk, K, Krajewski, K, Preβler, A.-L. and Hasselhorn, M (2013) The relationships between quantity-number competencies, working memory, and phonological awareness in 5- and 6-year-olds. The British Journal of Developmental Psychology 31, 408424. https://doi.org/10.1111/bjdp.12016.CrossRefGoogle ScholarPubMed
Moats, LC (2003) Speech to print: Language essentials for teachers. Princeton, N.J.: Recording for the Blind & Dyslexic.Google Scholar
Montrul, S (2008) Incomplete acquisition in bilingualism: Re-examining the age factor. Studies in bilingualism: Vol. 39. Amsterdam: Benjamins.CrossRefGoogle Scholar
Muñoz, C and Singleton, D (2011) A critical review of age-related research on L2 ultimate attainment. Language Teaching 44, 135. https://doi.org/10.1017/S0261444810000327.CrossRefGoogle Scholar
Nation, K and Cocksey, J (2009) The relationship between knowing a word and reading it aloud in children's word reading development. Journal of Experimental Child Psychology 103, 296308. https://doi.org/10.1016/j.jecp.2009.03.004.CrossRefGoogle ScholarPubMed
National Reading Panel (2000) Teaching children to read: An evidence-based assessment of the scientific research literature on reading and its implications for reading instruction. Bethesda, MD: National Institute of Child Health and Development.Google Scholar
Nicolay, A.-C. and Poncelet, M (2013) Cognitive abilities underlying second-language vocabulary acquisition in an early second-language immersion education context: A longitudinal study. Journal of Experimental Child Psychology 115, 655671. https://doi.org/10.1016/j.jecp.2013.04.002.CrossRefGoogle Scholar
O'Grady, W (2008) The emergentist program. Lingua 118, 447464. https://doi.org/10.1016/j.lingua.2006.12.001.CrossRefGoogle Scholar
Orena, AJ, Byers-Heinlein, K and Polka, L (2020) What do bilingual infants actually hear? Evaluating measures of language input to bilingual-learning 10-month-olds. Developmental science 23, 114. https://doi.org/10.1111/desc.12901.CrossRefGoogle ScholarPubMed
Paradis, J (2011) Internal and external factors in child second language acquisition. Linguistic Approaches to Bilingualism 1, 213237. https://doi.org/10.1075/lab.1.3.01par.CrossRefGoogle Scholar
Paradis, J and Grüter, T (2014) Introduction to “Input and experience in bilingual development”. In Grüter, T and Paradis, J (eds), Trends in language acquisition research: Vol. 13. Input and experience in bilingual development. Amsterdam: Benjamins, pp. 115.Google Scholar
Paradis, J and Jia, R (2016) Bilingual children's long-term outcomes in English as a second language: Language environment factors shape individual differences in catching up with monolinguals. Developmental Science 20, 115. https://doi.org/10.1111/desc.12433.Google ScholarPubMed
Paradis, J, Tulpar, Y and Arppe, A (2016) Chinese L1 children's English L2 verb morphology over time: Individual variation in long-term outcomes. Journal of Child Language 43, 553580. https://doi.org/10.1017/S0305000915000562.CrossRefGoogle ScholarPubMed
Paris, SG (2005) Reinterpreting the development of reading skills. Reading Research Quarterly 40, 184202. https://doi.org/10.1598/RRQ.40.2.3.CrossRefGoogle Scholar
Parra, M, Hoff, E and Core, C (2011) Relations among language exposure, phonological memory, and language development in Spanish-English bilingually developing 2-year-olds. Journal of Experimental Child Psychology 108, 113125. https://doi.org/10.1016/j.jecp.2010.07.011.CrossRefGoogle ScholarPubMed
Pearson, BZ, Fernandez, SC, Lewedeg, V and Oller, DK (1997) The relation of input factors to lexical learning by bilingual infants. Applied Psycholinguistics 18, 4158. https://doi.org/10.1017/S0142716400009863.CrossRefGoogle Scholar
Place, S and Hoff, E (2011) Properties of dual language exposure that influence 2-year-olds’ bilingual proficiency. Child Development 82, 18341849. https://doi.org/10.1111/j.1467-8624.2011.01660.x.CrossRefGoogle ScholarPubMed
Quiroz, BG, Snow, CE and Zhao, J (2010) Vocabulary skills of Spanish-English bilinguals: Impact of mother-child language interactions and home language and literacy support. International Journal of Bilingualism 14, 379399. https://doi.org/10.1177/1367006910370919.CrossRefGoogle Scholar
R Core Team (2018) R: A language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing. Retrieved from https://www.R-project.org/.Google Scholar
Roesch, AD and Chondrogianni, V (2016) “Which mouse kissed the frog?” Effects of age of onset, length of exposure, and knowledge of case marking on the comprehension of wh-questions in German-speaking simultaneous and early sequential bilingual children. Journal of Child Language 43, 635661. https://doi.org/10.1017/S0305000916000015.CrossRefGoogle ScholarPubMed
Roth, FP, Speece, DL and Cooper, DH (2002) A longitudinal analysis of the connection between oral language and early reading. The Journal of Educational Research 95, 259272. https://doi.org/10.1080/00220670209596600.CrossRefGoogle Scholar
Rutter, M (2016) Age as an ambiguous variable in developmental research: Some epidemiological considerations from developmental psychopathology. International Journal of Behavioral Development 12, 134. https://doi.org/10.1177/016502548901200101.CrossRefGoogle Scholar
Scarpino, SE, Lawrence, FR, Davison, MD and Hammer, CS (2011) Predicting bilingual Spanish-English children's phonological awareness abilities from their preschool English and Spanish oral language. Journal of Research in Reading 34, 7793. https://doi.org/10.1111/j.1467-9817.2010.01488.x.CrossRefGoogle ScholarPubMed
Sénéchal, M and LeFevre, J.-A. (2002) Parental involvement in the development of children's reading skill: A five-year longitudinal study. Child Development 73, 445460. https://doi.org/10.1111/1467-8624.00417.CrossRefGoogle ScholarPubMed
Sénéchal, M, Ouellette, GP and Rodney, D (2006) The misunderstood giant: On the predictive role of early vocabulary to future reading. In Dickinson, DK and Neuman, SB (eds), Handbook of early literacy research: Volume 2. New York, London: Guilford, pp. 173182.Google Scholar
Stevens, G (2006) The age-length-onset problem in research on second language acquisition among immigrants. Language Learning 56, 671692. https://doi.org/10.1111/j.1467-9922.2006.00392.x.CrossRefGoogle Scholar
Storch, SA and Whitehurst, GJ (2002) Oral language and code-related precursors to reading: Evidence from a longitudinal structural model. Developmental Psychology 38, 934947. https://doi.org/10.1037//0012-1649.38.6.934.CrossRefGoogle ScholarPubMed
Suggate, SP, Reese, E, Lenhard, W and Schneider, W (2014) The relative contributions of vocabulary, decoding, and phonemic awareness to word reading in English versus German. Reading and Writing 27, 13951412. https://doi.org/10.1007/s11145-014-9498-z.CrossRefGoogle Scholar
Summers, C, Bohman, TM, Gillam, RB, Peña, ED and Bedore, LM (2010) Bilingual performance on nonword repetition in Spanish and English. International Journal of Language & Communication Disorders 45, 480493. https://doi.org/10.3109/13682820903198058.CrossRefGoogle ScholarPubMed
Sun, H, Yin, B, Amsah, NFBB and O'Brien, BA (2017) Differential effects of internal and external factors in early bilingual vocabulary learning: The case of Singapore. Applied Psycholinguistics 20, 129. https://doi.org/10.1017/S014271641700039X.Google Scholar
Tarling, RJ (2009) Statistical modelling for social researchers: Principles and practice. Social research today. London: Routledge.Google Scholar
Thordardottir, E (2011) The relationship between bilingual exposure and vocabulary development. International Journal of Bilingualism 15, 426445. https://doi.org/10.1177/1367006911403202.CrossRefGoogle Scholar
Thordardottir, E (2015) The relationship between bilingual exposure and morphosyntactic development. International Journal of Speech-Language Pathology 17, 97114. https://doi.org/10.3109/17549507.2014.923509.CrossRefGoogle ScholarPubMed
Unsworth, S (2013) Current issues in multilingual first language acquisition. Annual Review of Applied Linguistics 33, 2150. https://doi.org/10.1017/S0267190513000044.CrossRefGoogle Scholar
Unsworth, S (2016a) Early child L2 acquisition: Age or input effects? Neither, or both? Journal of Child Language 43, 608634. https://doi.org/10.1017/S030500091500080X.CrossRefGoogle Scholar
Unsworth, S (2016b) Quantity and quality of language input in bilingual language development. In Nicoladis, E and Montanari, S (eds.), Language and the human lifespan series. Bilingualism across the lifespan: Factors moderating language proficiency. Berlin, Washington, DC: De Gruyter Mouton; American Psychological Association, pp. 136196.Google Scholar
Urban, D and Mayerl, J (2008) Regressionsanalyse: Theorie, Technik und Anwendung [Regression analysis: Theory, procedure, and application], 3rd Edn. Wiesbaden: VS Verlag für Sozialwissenschaften.Google Scholar
Van Buuren, S and Groothuis-Oudshoorn, K (2011). mice: Multivariate imputation by chained equations in R. Journal of Statistical Software 45. Retrieved from https://www.jstatsoft.org/v45/i03/.Google Scholar
Verhagen, J and Leseman, P (2016) How do verbal short-term memory and working memory relate to the acquisition of vocabulary and grammar? A comparison between first and second language learners. Journal of Experimental Child Psychology 141, 6582. https://doi.org/10.1016/j.jecp.2015.06.015.CrossRefGoogle ScholarPubMed
Wagner, RK, Torgesen, JK, Laughon, P, Simmons, K and Rashotte, CA (1993) Development of young readers' phonological processing abilities. Journal of Educational Psychology 85, 83103. https://doi.org/10.1037/0022-0663.85.1.83.CrossRefGoogle Scholar
Williams, KT (2007) Expressive Vocabulary Test, Second Edition (EVT-2). Pearson.Google Scholar
Xu, D, Yapanel, U and Gray, S (2009) Reliability of the LENA Language Environment Analysis System in young children's natural home environment. Boulder, CO: LENA Foundation 116.Google Scholar