Calculating mean length of utterance for eastern Canadian Inuktitut
Abstract
Although virtually all Inuit children in eastern Arctic Canada learn Inuktitut as their native language, there is a critical lack of tools to assess their level of language ability. This article investigates how mean length of utterance (MLU), a widely-used assessment measure in English and other languages, can be best applied in Inuktitut. The authors seek a measure that is suitable for the structural characteristics of Inuktitut as well as the practical realities of language assessment in the Inuit context. They compare five measures of mean length of utterance/word as well as five measures of longest utterance/word using three sets of data: spontaneous speech from eight children aged 1;8–3;6, frog story narratives from 12 older children and 6 adults, and spontaneous speech from one 5-year-old with specific language impairment and an age-matched peer. The authors conclude that mean length of word in syllables is the measure that provides the best balance of reliably assessing language level while also suiting Inuktitut structure and being relatively easy to calculate.
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References
Allen S. E. M. (1996). Aspects of argument structure acquisition in Inuktitut. Amsterdam, The Netherlands: John Benjamins.
Allen S. E. M. (1998). Categories within the verb category: Learning the causative in Inuktitut. Linguistics, 36, 633–677.
Allen S. E. M. (2000). A discourse-pragmatic explanation for argument representation in child Inuktitut. Linguistics, 38, 483–521.
Allen S. E. M. (2013). The acquisition of ergativity in Inuktitut. In Bavin E. L., Stoll S. (Eds.), The acquisition of ergative structures (pp. 71–105). Amsterdam, The Netherlands: John Benjamins.
Allen S. E. M. (in press). Polysynthesis in the acquisition of Inuit languages. In Fortescue M., Mithun M., Evans N. (Eds.), Handbook of polysynthesis. Oxford, UK: Oxford University Press.
Allen S. E. M., Crago M. B. (1996). Early passive acquisition in Inuktitut. Journal of Child Language, 23, 129–155.
Allen S. E. M., Crago M. B., Pesco D. (2006). The effect of majority language exposure on minority language skills: The case of Inuktitut. International Journal of Bilingual Education and Bilingualism, 9, 578–596.
Arlman-Rupp A. J. L., van Niekerk de Haan D., van de Sandt-Koenderman M. (1976). Brown’s early stages: Some evidence from Dutch. Journal of Child Language, 3, 267–274.
Bedore L. M., Leonard L. B. (2001). Grammatical morphology deficits in Spanish-speaking children with specific language impairment. Journal of Speech, Language, and Hearing Research, 44, 905–924.
Blake J., Quartaro G., Onorati S. (1993). Evaluating quantitative measures of grammatical complexity in spontaneous speech samples. Journal of Child Language, 20, 139–152.
Bol G. W. (2003). MLU matching and the production of morphosyntax in Dutch children with Specific Language Impairment (SLI). In Levy Y., Schaeffer J. (Eds.), Language competence across populations: Toward a definition of specific language impairment (pp. 259–272). Mahwah, NJ: Lawrence Erlbaum.
Brown R. (1973). A first language: The early stages. Cambridge, MA: Harvard University Press.
Cheung H. (1998). The application of MLU in Chinese. Journal of the Speech-Language-Hearing Association of the Republic of China, 13, 36–48.
Conant S. (1987). The relationship between age and MLU in young children: A second look at Klee and Fitzgerald’s data. Journal of Child Language, 14, 169–173.
Crago M. B. (1988). Cultural context in communicative interaction of Inuit children (Unpublished doctoral dissertation). McGill University, Montreal, Quebec, Canada.
Crago M. B., Allen S. E. M. (1997). Linguistic and cultural aspects of simplicity and complexity in Inuktitut (Eskimo) child-directed speech. In Hughes E., Hughes M., Greenhill A. (Eds.), Proceedings of the 21st Annual Boston University Conference on Language Development (pp. 91–102). Somerville, MA: Cascadilla Press.
Crago M. B., Allen S. E. M. (1998). Acquiring Inuktitut. In Taylor O., Leonard L. (Eds.), Language acquisition across North America: Cross-cultural and cross-linguistic perspectives (pp. 245–279). San Diego, CA: Singular Publishing Group.
Crago M. B., Allen S. E. M. (2001). Early finiteness in Inuktitut: The role of language structure and input. Language Acquisition, 9, 59–111.
Crago M. B., Annahatak B., Doehring D., Allen S. E. M. (1991). Evaluation of Inuit children’s first language by native speakers. Journal of Speech-Language Pathology & Audiology, 15, 43–48.
Crystal D., Fletcher P., Garman M. (1976). The grammatical analysis of language disability: A procedure for assessment and remediation (Vol. 1). London, England: Edward Arnold.
DeThorne L. S., Johnson B. W., Loeb J. W. (2005). A closer look at MLU: What does it really measure? Clinical Linguistics and Phonetics, 19, 635–648.
de Villiers J., de Villiers P. (1973). A cross-sectional study of the acquisition of grammatical morphemes in child speech. Journal of Psycholinguistic Research, 2, 267–278.
Dorais L.-J. (1983). Uqausigusiqtaat: An analytical lexicon of modern Inuktitut in Quebec-Labrador. Quebec City, Quebec, Canada: Les Presses de l’Université Laval.
Dorais L.-J. (1988). Tukilik: An Inuktitut grammar for all. Quebec City, Quebec, Canada: Association Inuksiutiit Katimajiit.
Dorais L.-J. (2010). Language of the Inuit: Syntax, semantics and society in the Arctic. Montreal, Quebec, Canada: McGill-Queen’s Press.
Dorais L.-J., Sammons S. (2002). Language in Nunavut: Discourse and identity in the Baffin region. Iqaluit, Canada: Nunavut Arctic College.
Dromi E., Berman R. A. (1982). A morphemic measure of early language development: Data from Modern Hebrew. Journal of Child Language, 9, 403–424.
Ege P., Acarlar F., Güleryüz F. (1998). The relationship between age and mean length of utterance in acquisition of Turkish. Turkish Journal of Psychology, 13(41), 19–31.
Eisenberg S. L., Fersko T. M., Lundgren C. (2001). The use of MLU for identifying language impairment in preschool children: A review. American Journal of Speech-Language Pathology, 10, 323–342.
Evans N., Sasse H. J. (2002). Introduction: Problems of polysynthesis. In Evans N., Sasse H. J. (Eds.), Problems of polysynthesis (pp. 1–13). Berlin, Germany: Akademie Verlag.
Fortescue M. (1985). Learning to speak Greenlandic: A case study of a two-year-old’s morphology in a polysynthetic language. First Language, 5, 101–114.
Fortescue M. (1994). Polysynthetic morphology. In Asher R. E., Simpson J. M. Y. (Eds.), The encyclopedia of language and linguistics (Vol. 5, pp. 2600–2602). Amsterdam: Pergamon Press.
Fortescue M., Lennert Olsen L. (1992). The acquisition of West Greenlandic. In Slobin D. I. (Ed.), The crosslinguistic study of language acquisition (Vol. 3, pp. 111–220). Hillsdale, NJ: Lawrence Erlbaum.
Hansson K., Nettelbladt U., Leonard L. B. (2000). Specific language impairment in Swedish: The status of verb morphology and word order. Journal of Speech, Language, and Hearing Research, 43, 848–864.
Hickey T. (1991). Mean length of utterance and the acquisition of Irish. Journal of Child Language, 18, 553–569.
Jakubowicz C., Nash L., Rigaut C., Gérard C.-L. (1998). Determiners and clitic pronouns in French-speaking children with SLI. Language Acquisition, 7, 113–160.
Klee T., Fitzgerald M. E. (1985). The relation between grammatical development and mean length of utterance in morphemes. Journal of Child Language, 12, 251–269.
Klee T., Stokes S. F., Wong A. M.-Y., Fletcher P., Gavin W. J. (2004). Utterance length and lexical diversity in Cantonese-speaking children with and without Specific Language Impairment. Journal of Speech, Language, and Hearing Research, 47, 1396–1410.
Kok L. T. (2011). A comparison of mean length of utterances (MLU) on Mandarin child language data of Chinese children within the age ranges of 1;0 – 6;11 years old: MLU- S (syllable) and MLU-W (word) (Bachelor of Speech Science thesis). Universiti Kebangsaan Malaysia, Bangi.
Kunnari S., Savinainen-Makkonen T., Leonard L. B., Mäkinen L., Tolonen A. K., Luotonen M., Leinonen E. (2011). Children with specific language impairment in Finnish: The use of tense and agreement inflections. Journal of Child Language, 38, 999–1027.
Lee L. (1974). Developmental sentence analysis. Evanston, IL: Northwestern University Press.
Leonard L. B. (2014), Specific language impairment across languages. Child Development Perspectives, 8, 1–5.
Lieven E., Behrens H., Speares J., Tomasello M. (2003). Early syntactic creativity: A usage-based approach. Journal of Child Language, 30, 333–370.
Linares N. (1981). Rules for calculating mean length of utterance in morphemes for Spanish. In Erickson J. G., Omark D. R. (Eds.), Communication assessment of the bilingual bicultural child: Issues and guidelines (pp. 291–295). Baltimore, MD: University Park Press.
Linares-Orama N., Sanders L. J. (1977). Evaluation of syntax in three-year-old Spanish-speaking Puerto Rican children. Journal of Speech and Hearing Research, 20, 350–357.
Lipscomb D. R. (1992). Differences and similarities in the prosodic systems of Western and Eastern Eskimo. Acta Linguistica Hafniensia, 25, 63–81.
Lukacs A., Leonard L., Kas B., Pleh C. (2009). The use of tense and agreement by Hungarian-speaking children with language impairment. Journal of Speech, Language, and Hearing Research, 52, 98–117.
MacWhinney B., Snow C. (2000). The CHILDES project: Tools for analyzing talk, Vol. 1: Transcription format and programs (3rd ed.). Mahwah, NJ: Lawrence Erlbaum.
Malakoff M. E., Mayes L. C., Schottenfeld R., Howell S. (1999). Language production in 24-month-old inner-city children of cocaine-and-other-drug-using mothers. Journal of Applied Developmental Psychology, 20, 159–180.
Mayer M. (1969). Frog, where are you? New York, NY: Dial Press.
Miller J., Chapman R. (1981). The relation between age and mean length of utterance in morphemes. Journal of Speech and Hearing Research, 24, 154–161.
Moyle M. J., Karasinski C., Weismer S. E., Gorman B. K. (2011). Grammatical morphology in school-age children with and without language impairment: A discriminant function analysis. Language, Speech, and Hearing Services in Schools, 42, 550–560.
Nice M. M. (1925). Length of sentences as a criterion of a child’s progress in speech. Journal of Educational Psychology, 16, 370–379.
Nieminen L. (2007). A complex case: A morphosyntactic approach to complexity in early child language. Jyväskylä, Finland: Jyväskylä University Printing House.
Park T.-Z. (1981). The development of syntax in the child with special reference to German. Innsbrucker Beiträge zur Kulturwissenschaft, Sonderheft 45. Innsbruck, Austria: Institut für Sprachwissenschaft der Universität Innsbruck.
Parker M. D., Brorson K. (2005). A comparative study between mean length of utterance in morphemes (MLUm) and mean length of utterance in words (MLUw). First Language, 25, 365–376.
Parkinson D. P. (1999). The interaction of syntax and morphology in the acquisition of noun incorporation in Inuktitut (Unpublished doctoral dissertation). Cornell University, Ithaca, NY.
Peters A. M., Menn L. (1993). False starts and filler syllables: Ways to learn grammatical morphemes. Language, 69, 742–777.
Rice M. L., Redmond S. M., Hoffman L. (2006). Mean length of utterance in children with specific language impairment and in younger control children shows concurrent validity and stable and parallel growth trajectories. Journal of Speech, Language, and Hearing Research, 49, 793–808.
Rice M. L., Smolik F., Perpich D., Thompson T., Rytting N., Blossom M. (2010). Mean length of utterance levels in 6-month intervals for children 3 to 9 years with and without language impairments. Journal of Speech, Language, and Hearing Research, 53, 333–349.
Rice M. L., Wexler K., Cleave P. L. (1995). Specific language impairment as a period of extended optional infinitive. Journal of Speech and Hearing Research, 38, 850–863.
Rollins P. R., Snow C. E., Willett J. B. (1996). Predictors of MLU: Semantic and morphological developments. First Language, 16, 243–259.
Rondal J. A., Ghiotto M., Bredart S., Bachelet J. F. (1987). Age-relation, reliability, and grammatical validity of measures of utterance length. Journal of Child Language, 14, 433–446.
Scarborough H. (1990). Index of productive syntax. Applied Psycholinguistics, 11, 1–22.
Scarborough H., Rescorla L., Tager-Flusberg H., Fowler A. E., Sudhalter V. (1991). The relation of utterance length to grammatical complexity in normal and language disordered groups. Applied Psycholinguistics, 12, 23–45.
Speech-Language & Audiology Canada. (2010). Speech, language and hearing services to First Nations, Inuit and Métis children in Canada, with a focus on children 0 to 6 years of age. Ottawa, Ontario.
Statistics Canada. (2011). Aboriginal languages in Canada. Language, 2011 Census of Population. Retrieved from http://www12.statcan.gc.ca/census-recensement/2011/as-sa/98-314-x/98-314-x2011003_3-eng.pdf
Swift M. D. (2004). Time in child Inuktitut: A developmental study of an Eskimo-Aleut language. Berlin, Germany: Mouton de Gruyter.
Thordardottir E., Weismer E. (1998). Mean length of utterance and other language sample measures in early Icelandic. First Language, 18, 1–32.
Wells G. (1985). Language development in the pre-school years (Vol. 2). Cambridge, UK: Cambridge University Press.
Wieczorek R. (2010). Using MLU to study early language development in English. Psychology of Language and Communication, 14(2), 59–69.
Wilman D. (1988). The natural language of Inuit children: A key to Inuktitut literacy (Unpublished doctoral dissertation). University of New Mexico, Albuquerque.
Wright S. C., Taylor D. M., Macarthur J. (2000). Subtractive bilingualism and the survival of the Inuit language: Heritage- versus second-language education. Journal of Educational Psychology, 92, 63–84.
Yip V., Matthews S. (2006). Assessing language dominance in bilingual acquisition: A case for mean length of utterance differentials. Language Assessment Quarterly, 3, 97–116.
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Article first published online: November 26, 2015
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