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Relative language exposure, processing efficiency and vocabulary in Spanish–English bilingual toddlers*

Published online by Cambridge University Press:  23 April 2013

Stanford University
University of Hawai'i at Mānoa
Stanford University
Stanford University
Address for correspondence: Nereyda Hurtado, Department of Psychology, Jordan Hall, Building 420, Stanford University, Stanford, CA 94305,


Research with monolingual children has shown that early efficiency in real-time word recognition predicts later language and cognitive outcomes. In parallel research with young bilingual children, processing ability and vocabulary size are closely related within each language, although not across the two languages. For children in dual-language environments, one source of variation in patterns of language learning is differences in the degree to which they are exposed to each of their languages. In a longitudinal study of Spanish/English bilingual children observed at 30 and 36 months, we asked whether the relative amount of exposure to Spanish vs. English in daily interactions predicts children's relative efficiency in real-time language processing in each language. Moreover, to what extent does early exposure and speed of lexical comprehension predict later expressive and receptive vocabulary outcomes in Spanish vs. English? Results suggest that processing skill and language experience each promote vocabulary development, but also that experience with a particular language provides opportunities for practice in real-time comprehension in that language, sharpening processing skills that are critical for learning.

Research Article
Copyright © Cambridge University Press 2013 

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We are grateful to the children and parents who participated in this research. Special thanks to the reviewers and editors of this journal for their thoughtful comments and suggestions. Thanks to Adriana Weisleder, Lucía Rodríguez Mata, Ana Luz Portillo, Amber MacMillan, Renate Zangl, Lucia Martinez, Araceli Arroyo, and the staff of the Center for Infant Studies at Stanford University. This work was supported by grants from the National Institutes of Health to Anne Fernald (HD 42235, DC 008838) with a Postdoctoral Research Supplement for Underrepresented Minorities to Nereyda Hurtado and a National Research Service Award (NRSA) to Theres Grüter (F32 DC010129-01).


Bates, E., Bretherton, I., & Snyder, L. (1988). From first words to grammar: Individual differences and dissociable mechanisms. New York: Cambridge University Press.Google Scholar
Bedore, L. M., Peña, E. D., Summers, C. L., Boerger, K. M., Resendiz, M. D., Greene, K., Bohman, T. M., & Gillam, R. B. (2012). The measure matters: Language dominance profiles across measures in Spanish–English bilingual children. Bilingualism: Language and Cognition, 15, 616629.CrossRefGoogle ScholarPubMed
Byers-Heinlein, K. (2012). Parental language mixing: Its measurement and the relation of mixed input to young bilingual children's vocabulary size. Bilingualism: Language and Cognition, 16, 3248.CrossRefGoogle Scholar
Dale, P. S. (1991). The validity of a parent report measure of vocabulary and syntax at 24 months. Journal of Speech and Hearing Sciences, 34, 565571.CrossRefGoogle ScholarPubMed
Dale, P. S., & Fenson, L. (1996). Lexical development norms for young children. Behavior Research Methods, Instruments & Computers, 28, 125127.CrossRefGoogle Scholar
de Houwer, A. (2007). Parental language input patterns and children's bilingual use. Applied Psycholinguistics, 28, 411424.CrossRefGoogle Scholar
de Houwer, A. (2009). Bilingual first language acquisition. Tonawanda, NY: Multilingual Matters.Google Scholar
Dunn, L. M., & Dunn, L. M. (1997). Peabody Picture Vocabulary Test – Third Edition (PPVT–III). Circle Pines, MN: AGS Publishing.Google Scholar
Dunn, L. M., Padilla, E., Lugo, D., & Dunn, L. M. (1986). Test de Vocabulario en Imágenes Peabody (TVIP). Circle Pines, MN: AGS Publishing.Google Scholar
Duursma, S., Romero-Contreras, A., Szuber, P. P., Snow, C., August, D., & Calderon, M. (2007). The role of home literacy and language environment on bilinguals’ English and Spanish vocabulary development. Applied Psycholinguistics, 28, 171190.CrossRefGoogle Scholar
Elin Thordardottir (2011). The relationship between bilingual exposure and vocabulary development. International Journal of Bilingualism, 15, 426445.CrossRefGoogle Scholar
Thordardottir, Elin, Rothenberg, A., Rivard, M-E., & Naves, R. (2006). Bilingual assessment: Can overall proficiency be estimated from separate measurement of two languages? Journal of Multilingual Communication Disorders, 4, 121.Google Scholar
Fenson, L., Marchman, V. A., Thal, D., Dale, P. S., Reznick, J. S., & Bates, E. (2007). MacArthur-Bates Communicative Development Inventories: User's guide and technical manual (2nd edn.). Baltimore, MD: Brookes Publishing.Google Scholar
Fernald, A. (2006). When infants hear two languages: Interpreting research on early speech perception by bilingual children. In McCardle & Hoff (eds.), pp. 19–29.Google Scholar
Fernald, A., & Marchman, V. A. (2011). Causes and consequences of variability in early language learning. In Arnon, I. & Clark, E. V. (eds.), Experience, variation, and generalization: Learning a first language (Trends in Language Acquisition Research), pp. 181202. Amsterdam: John Benjamins.CrossRefGoogle Scholar
Fernald, A., & Marchman, V. A. (2012). Individual differences in lexical processing at 18 months predict vocabulary growth in typically-developing and late-talking toddlers. Child Development, 83, 203222.CrossRefGoogle ScholarPubMed
Fernald, A., Perfors, A., & Marchman, V. A. (2006). Picking up speed in understanding: Speech processing efficiency and vocabulary growth across the second year. Developmental Psychology, 42, 98116.CrossRefGoogle Scholar
Fernald, A., Pinto, J. P., Swingley, D., Weinberg, A., & McRoberts, G. W. (1998). Rapid gains in speed of verbal processing by infants in the second year. Psychological Science, 9, 7275.CrossRefGoogle Scholar
Fernald, A., & Weisleder, A. (2011). Early language experience is vital to developing fluency in understanding. In Neuman, S. & Dickinson, D. (eds.), Handbook of early literacy research (vol. 3), pp. 319. New York: Guilford Publications.Google Scholar
Fernald, A., Zangl, R., Portillo, A. L., & Marchman, V. A. (2008). Looking while listening: Using eye movements to monitor spoken language comprehension by infants and young children. In Sekerina, I., Fernández, E. M. & Clahsen, H. (eds.), Developmental psycholinguistics: On-line methods in children's language processing, pp. 97135. Amsterdam: John Benjamins.CrossRefGoogle Scholar
Flege, J. E., MacKay, I. R. A., & Piske, T. (2002). Assessing bilingual dominance. Applied Psycholinguistics, 23, 567598.CrossRefGoogle Scholar
Gathercole, V. C. M., & Thomas, E. M. (2009). Bilingual first-language development: Dominant language takeover, threatened minority language take-up. Bilingualism: Language and Cognition, 12, 213237.CrossRefGoogle Scholar
Genesee, F. (1989). Early bilingual development: One language or two? Journal of Child Language, 16, 161179.CrossRefGoogle ScholarPubMed
Gibson, T. A., Oller, D. K., Jarmulowicz, L., & Ethington, C. A. (2012). The receptive–expressive gap in the vocabulary of second-language learners: Robustness and possible mechanisms. Bilingualism: Language and Cognition, 15, 102116.CrossRefGoogle ScholarPubMed
Goodz, N. (1989). Parental language mixing in bilingual families. Infant Mental Health Journal, 10, 2544.3.0.CO;2-R>CrossRefGoogle Scholar
Guiberson, M., Rodríguez, B. L., & Dale, P. S. (2011). Classification accuracy of brief parent report measures of language development in Spanish-speaking toddlers. Language, Speech and Hearing Services in School, 42, 536549.CrossRefGoogle ScholarPubMed
Gutiérrez-Clellen, V. F., & Kreiter, J. (2003). Understanding child bilingual acquisition using parent and teacher reports. Applied Psycholinguistics, 24, 267288.CrossRefGoogle Scholar
Hart, B., & Risley, T. R. (1995). Meaningful differences in the everyday experience of young American children. Baltimore, MD: Brookes Publishing.Google Scholar
Hart, B., & Risley, T. R. (1999). The social world of children: Learning to talk. Baltimore, MD: Brookes Publishing.Google Scholar
Hoff, E. (2003). The specificity of environmental influence: Socioeconomic status affects early vocabulary development via maternal speech. Child Development, 74, 13681878.CrossRefGoogle ScholarPubMed
Hoff, E. (2006). How social contexts support and shape language development. Developmental Review, 26, 5588.CrossRefGoogle Scholar
Hoff, E., Core, C., Place, S., Rumiche, R., Señor, M., & Parra, M. (2012). Dual language exposure and early bilingual development. Journal of Child Language, 39, 127.CrossRefGoogle ScholarPubMed
Hollingshead, A. B. (1975). Four factor index of social status. Ms., Yale University.Google Scholar
Hurtado, N., Marchman, V. A., & Fernald, A. (2007). Spoken word recognition by Latino children learning Spanish as their first language. Journal of Child Language, 33, 27249.Google Scholar
Hurtado, N., Marchman, V. A., & Fernald, A. (2008). Does input influence uptake? Links between maternal talk, processing speed and vocabulary size in Spanish-learning children. Developmental Science, 11, F31F39.CrossRefGoogle ScholarPubMed
Huttenlocher, J., Haight, W., Bryk, A., Seltzer, M., & Lyons, T. (1991). Vocabulary growth: Relation to language input and gender. Developmental Psychology, 27, 236248.CrossRefGoogle Scholar
Jackson-Maldonado, D., Thal, D. J., Marchman, V. A., Newton, T., Fenson, L., & Conboy, B. (2003). MacArthur Inventarios del Desarrollo de Habilidades Comunicativas: User's guide and technical manual. Baltimore, MD: Brookes Publishing.Google Scholar
Kovács, A. M., & Mehler, J. (2009). Flexible learning of multiple speech structures in bilingual infants. Science, 325 (5940), 611612.CrossRefGoogle ScholarPubMed
Marchman, V. A., & Fernald, A. (2008). Speed of word recognition and vocabulary knowledge in infancy predict cognitive and language outcomes in later childhood. Developmental Science, 11, F9F16.CrossRefGoogle ScholarPubMed
Marchman, V. A., Fernald, A., & Hurtado, N. (2010). How vocabulary size in two languages relates to efficiency in spoken word recognition by young Spanish–English bilinguals. Journal of Child Language, 37, 817840.CrossRefGoogle ScholarPubMed
Marchman, V. A., Fernald, A., & Hurtado, N. (2013). Early spoken language understanding predicts language and cognitive outcomes in Spanish-speaking toddlers. Ms., Stanford University.Google Scholar
Marchman, V. A., & Martínez-Sussmann, C. (2002). Concurrent validity of caregiver/parent report measures of language for children who are learning both English and Spanish. Journal of Speech, Language, and Hearing Research, 45, 993997.CrossRefGoogle ScholarPubMed
Marchman, V. A., Martínez-Sussmann, C., & Dale, P. S. (2004). The language-specific nature of grammatical development: Evidence from bilingual language learners. Developmental Science, 7, 212224.CrossRefGoogle ScholarPubMed
McCardle, P., & Hoff, E. (eds.) (2006). Childhood bilingualism: Research on infancy through school age. Clevedon: Multilingual Matters.Google Scholar
Oller, D. K., & Eilers, R. E. (eds.) (2002). Language and literacy in bilingual children. Clevedon: Multilingual Matters.Google Scholar
Paradis, J., & Genesee, F. (1996). Syntactic acquisition in bilingual children: Autonomous or interdependent? Studies in Second Language Acquisition, 18, 125.CrossRefGoogle Scholar
Paradis, J., Genesee, F., & Crago, M. B. (2011). Dual language development and disorders: A handbook on bilingualism and second language learning (2nd edn.) Baltimore, MD: Brookes Publishing.Google Scholar
Patterson, J., & Pearson, B. Z. (2004). Bilingual lexical development: Influences, contexts and processes. In Goldstein, B. A. (ed.), Bilingual language development and disorders in Spanish–English speakers, pp. 77104. Baltimore, MD: Brookes Publishing.Google Scholar
Pearson, B. Z., Fernández, S. C., Lewedeg, V., & Oller, D. K. (1997). The relation of input factors to lexical learning by bilingual infants. Applied Psycholinguistics, 18, 4158.CrossRefGoogle Scholar
Place, S., & Hoff, E. (2011). Properties of dual language exposure that influence 2-year-olds’ bilingual proficiency. Child Development, 82, 18341849.CrossRefGoogle ScholarPubMed
Restrepo, M. A. (1998). Identifiers of predominantly Spanish-speaking children with language impairment. Journal of Speech, Language, and Hearing Research, 41, 13981411.CrossRefGoogle ScholarPubMed
Rodríguez, E. T., Tamis-LeMonda, C. S., Spellmann, M. E., Pan, B. A., Raikes, H., Lugo-Gil, J., & Luze, G. (2009). The formative role of home literacy experiences across the first three years of life in children from low-income families. Journal of Applied Developmental Psychology, 30, 677694.CrossRefGoogle Scholar
Rowe, M. L. (2008). Child-directed speech: Relation to socioeconomic status, knowledge of child development, and child vocabulary skill. Journal of Child Language, 35, 185205.CrossRefGoogle ScholarPubMed
Song, L., Tamis-LeMonda, C. S., Yoshikawa, H., Kahana-Kalman, R., & Wu, I. (2011). Language experiences and vocabulary development in Dominican and Mexican infants across the first 2 years. Developmental Psychology, 48, 11061123.CrossRefGoogle ScholarPubMed
Tomasello, M., & Mervis, C. (1994). The instrument is great, but measuring comprehension is still a problem. Monographs of the Society for Research in Child Development, 59, 174179.CrossRefGoogle Scholar
Weisleder, A., & Fernald, A. (in press). Talking to children matters: Early language experience strengthens processing and builds vocabulary. Psychological Science.Google Scholar
Werker, J. F., & Byers-Heinlein, K. (2008). Bilingualism in infancy: First steps in perception and comprehension. Trends in Cognitive Science, 12, 144151.CrossRefGoogle ScholarPubMed