Individual Differences in the Onset of Tense Marking: A Growth-Curve Analysis.
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| Title: | Individual Differences in the Onset of Tense Marking: A Growth-Curve Analysis. |
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| Authors: | Hadley, Pamela A.1 phadley@niu.edu, Holt, Janet K.1 |
| Source: | Journal of Speech, Language & Hearing Research. Oct2006, Vol. 49 Issue 5, p984-1000. 17p. |
| Subject Terms: | *Tense (Grammar), *Vocabulary, *Children's language, Language disorders in children, Speech disorders in children |
| Abstract: | The purpose of this study was to explore individual differences in children's tense onset growth trajectories and to determine whether any within- or between-child predictors could account for these differences. Twenty-two children with expressive vocabulary abilities in the low-average to below-average range participated. Sixteen children were at risk for specific language impairment (SLI), and 6 children had low-average language abilities. Spontaneous language samples, obtained at 3-month intervals between 2;0 and 3;0, were analyzed to examine change in a cumulative productivity score for 5 tense morphemes: third person singular present, past tense, copula BE, auxiliary BE, and auxiliary DO. Hierarchical linear modeling was used to model intercept and linear growth at 30 months and quadratic growth overall. A growth model that included mean length of utterance (MLU) and MLU growth better explained within-child productivity score growth trajectories than a parallel model with vocabulary and vocabulary growth. Significant linear growth in productivity scores remained even after a control for MLU was in place. When between-child predictors were added in the final conditional model, only positive family history approached statistical significance, improving the overall estimation of the model's growth parameters. The findings support theoretical models of language acquisition that claim relative independence of tense marking from other more general aspects of vocabulary development and sentence length. The trends for family history are also consistent with proposals implicating faulty genetic mechanisms underlying developmental language disorders. Systematic use of familial risk data is recommended in future investigations examining the relationship between late-talking children and children at risk for SLI. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Education Research Complete |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: ehh DbLabel: Education Research Complete An: 22982867 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Individual Differences in the Onset of Tense Marking: A Growth-Curve Analysis. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hadley%2C+Pamela+A%2E%22">Hadley, Pamela A.</searchLink><relatesTo>1</relatesTo><i> phadley@niu.edu</i><br /><searchLink fieldCode="AR" term="%22Holt%2C+Janet+K%2E%22">Holt, Janet K.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Speech%2C+Language+%26+Hearing+Research%22">Journal of Speech, Language & Hearing Research</searchLink>. Oct2006, Vol. 49 Issue 5, p984-1000. 17p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Tense+%28Grammar%29%22">Tense (Grammar)</searchLink><br />*<searchLink fieldCode="DE" term="%22Vocabulary%22">Vocabulary</searchLink><br />*<searchLink fieldCode="DE" term="%22Children's+language%22">Children's language</searchLink><br /><searchLink fieldCode="DE" term="%22Language+disorders+in+children%22">Language disorders in children</searchLink><br /><searchLink fieldCode="DE" term="%22Speech+disorders+in+children%22">Speech disorders in children</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The purpose of this study was to explore individual differences in children's tense onset growth trajectories and to determine whether any within- or between-child predictors could account for these differences. Twenty-two children with expressive vocabulary abilities in the low-average to below-average range participated. Sixteen children were at risk for specific language impairment (SLI), and 6 children had low-average language abilities. Spontaneous language samples, obtained at 3-month intervals between 2;0 and 3;0, were analyzed to examine change in a cumulative productivity score for 5 tense morphemes: third person singular present, past tense, copula BE, auxiliary BE, and auxiliary DO. Hierarchical linear modeling was used to model intercept and linear growth at 30 months and quadratic growth overall. A growth model that included mean length of utterance (MLU) and MLU growth better explained within-child productivity score growth trajectories than a parallel model with vocabulary and vocabulary growth. Significant linear growth in productivity scores remained even after a control for MLU was in place. When between-child predictors were added in the final conditional model, only positive family history approached statistical significance, improving the overall estimation of the model's growth parameters. The findings support theoretical models of language acquisition that claim relative independence of tense marking from other more general aspects of vocabulary development and sentence length. The trends for family history are also consistent with proposals implicating faulty genetic mechanisms underlying developmental language disorders. Systematic use of familial risk data is recommended in future investigations examining the relationship between late-talking children and children at risk for SLI. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=ehh&AN=22982867 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1044/1092-4388(2006/071) Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 984 Subjects: – SubjectFull: Tense (Grammar) Type: general – SubjectFull: Vocabulary Type: general – SubjectFull: Children's language Type: general – SubjectFull: Language disorders in children Type: general – SubjectFull: Speech disorders in children Type: general Titles: – TitleFull: Individual Differences in the Onset of Tense Marking: A Growth-Curve Analysis. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hadley, Pamela A. – PersonEntity: Name: NameFull: Holt, Janet K. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2006 Type: published Y: 2006 Identifiers: – Type: issn-print Value: 10924388 Numbering: – Type: volume Value: 49 – Type: issue Value: 5 Titles: – TitleFull: Journal of Speech, Language & Hearing Research Type: main |
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