Mean Length of Utterance in Czech Toddlers: Validity Estimates and Comparison of Words, Morphemes, and Syllables.
Purpose: We examined the properties of mean length of utterance (MLU) in Czech, a morphologically complex Slavic language. We compared the scores of MLU calculated in different units and based on different sample lengths and assessed its validity against another transcript and test-based measures. M...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 67; no. 3; pp. 837 - 853 |
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| Autores principales: | , , , , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Mar2024
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=176083728&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 176083728 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Mar2024 vid: 67 iid: 3 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 176083728 10.1044/2023_JSLHR-23-00251 ppf: 837 ppct: 16 formats: fmt: @attributes: type: P size: 924KB tig: atl: Mean Length of Utterance in Czech Toddlers: Validity Estimates and Comparison of Words, Morphemes, and Syllables. aug: au: Matiasovitsová, Klára Čechová, Petra Sláma, Jakub Homolková, Kamila Smolík, Filip affil: Faculty of Arts, Charles University, Prague, Czech Republic Institute of Psychology, Czech Academy of Sciences, Prague, Czech Republic su: Language & languages Comparative grammar Vocabulary Reliability (Personality trait) Children Czechs Data analysis Research funding Teaching aids Multiple regression analysis Research evaluation Research methodology evaluation Descriptive statistics Mean length of utterance Statistics Research methodology Predictive validity sug: subj: Language & languages Comparative grammar Vocabulary Reliability (Personality trait) Children Czechs Data analysis Research funding Teaching aids Multiple regression analysis Research evaluation Research methodology evaluation Descriptive statistics Mean length of utterance Statistics Research methodology Predictive validity ab: Purpose: We examined the properties of mean length of utterance (MLU) in Czech, a morphologically complex Slavic language. We compared the scores of MLU calculated in different units and based on different sample lengths and assessed its validity against another transcript and test-based measures. Method: One hundred nine children were recorded during free-play at 2;6 and 3;11 (years;months). We compared MLU in syllables, morphemes, and words (MLU) in transcripts of different lengths (50, 75, 100, and all available utterances). For evaluating the validity of MLU, we also calculated Index of Productive Syntax (IPSyn) and number of different words (NDW) and used results of receptive vocabulary and grammar comprehension tests. Results: The different MLU measures based on different sample lengths correlated closely with MLU in transcripts of all utterances (all rs > .87). We found mostly strong correlations between MLU, IPSyn, and NDW at both time points and weak or moderate correlations between MLU and grammar and vocabulary. Regression models showed the significant unique effect of MLU at 2;6 for MLU (β = .29) and grammar (β = .33) at 3;11 and vocabulary (β = .27) at 3;7. Conclusion: MLU based on all utterances was confirmed as a valid measure of early language skills in Czech, as it is stable in time and shows concurrent and predictive relations with other transcript-based and test-based measures. Supplemental Material: https://doi.org/10.23641/asha.25215203 pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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