A statistical estimate of infant and toddler vocabulary size from CDI analysis.
Saved in:
| Title: | A statistical estimate of infant and toddler vocabulary size from CDI analysis. |
|---|---|
| Authors: | Mayor, Julien (AUTHOR), Plunkett, Kim (AUTHOR) |
| Source: | Developmental Science. Jul2011, Vol. 14 Issue 4, p769-785. 17p. 6 Charts, 10 Graphs. |
| Subjects: | Infant development, Toddlers development, Vocabulary, Communicative competence in children, Communicative competence, MacArthur Communicative Development Inventories |
| Abstract: | For the last 20 years, developmental psychologists have measured the variability in lexical development of infants and toddlers using the MacArthur-Bates Communicative Development Inventories (CDIs) - the most widely used parental report forms for assessing language and communication skills in infants and toddlers. We show that CDI reports can serve as a basis for estimating infants' and toddlers' total vocabulary sizes, beyond serving as a tool for assessing their language development relative to other infants and toddlers. We investigate the link between estimated total vocabulary size and raw CDI scores from a mathematical perspective, using both single developmental trajectories and population data. The method capitalizes on robust regularities, such as the overlap of individual vocabularies observed across infants and toddlers, and takes into account both shared knowledge and idiosyncratic knowledge. This statistical approach enables researchers to approximate the total vocabulary size of an infant or a toddler, based on her raw MacArthur-Bates CDI score . Using the model, we propose new normative data for productive and receptive vocabulary in early childhood, as well as a tabulation that relates individual CDI measures to realistic lexical estimates. The correction required to estimate total vocabulary is non-linear, with a far greater impact at older ages and higher CDI scores. Therefore, we suggest that correlations of developmental indices to language skills should be made to vocabulary size as estimated by the model rather than to raw CDI scores. [ABSTRACT FROM AUTHOR] |
| Copyright of Developmental Science is the property of Wiley-Blackwell 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: | Psychology and Behavioral Sciences Collection |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 61267398 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: A statistical estimate of infant and toddler vocabulary size from CDI analysis. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mayor%2C+Julien%22">Mayor, Julien</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Plunkett%2C+Kim%22">Plunkett, Kim</searchLink> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Developmental+Science%22">Developmental Science</searchLink>. Jul2011, Vol. 14 Issue 4, p769-785. 17p. 6 Charts, 10 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Infant+development%22">Infant development</searchLink><br /><searchLink fieldCode="DE" term="%22Toddlers+development%22">Toddlers development</searchLink><br /><searchLink fieldCode="DE" term="%22Vocabulary%22">Vocabulary</searchLink><br /><searchLink fieldCode="DE" term="%22Communicative+competence+in+children%22">Communicative competence in children</searchLink><br /><searchLink fieldCode="DE" term="%22Communicative+competence%22">Communicative competence</searchLink><br /><searchLink fieldCode="DE" term="%22MacArthur+Communicative+Development+Inventories%22">MacArthur Communicative Development Inventories</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: For the last 20 years, developmental psychologists have measured the variability in lexical development of infants and toddlers using the MacArthur-Bates Communicative Development Inventories (CDIs) - the most widely used parental report forms for assessing language and communication skills in infants and toddlers. We show that CDI reports can serve as a basis for estimating infants' and toddlers' total vocabulary sizes, beyond serving as a tool for assessing their language development relative to other infants and toddlers. We investigate the link between estimated total vocabulary size and raw CDI scores from a mathematical perspective, using both single developmental trajectories and population data. The method capitalizes on robust regularities, such as the overlap of individual vocabularies observed across infants and toddlers, and takes into account both shared knowledge and idiosyncratic knowledge. This statistical approach enables researchers to approximate the total vocabulary size of an infant or a toddler, based on her raw MacArthur-Bates CDI score . Using the model, we propose new normative data for productive and receptive vocabulary in early childhood, as well as a tabulation that relates individual CDI measures to realistic lexical estimates. The correction required to estimate total vocabulary is non-linear, with a far greater impact at older ages and higher CDI scores. Therefore, we suggest that correlations of developmental indices to language skills should be made to vocabulary size as estimated by the model rather than to raw CDI scores. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Developmental Science is the property of Wiley-Blackwell 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=pbh&AN=61267398 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/j.1467-7687.2010.01024.x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 769 Subjects: – SubjectFull: Infant development Type: general – SubjectFull: Toddlers development Type: general – SubjectFull: Vocabulary Type: general – SubjectFull: Communicative competence in children Type: general – SubjectFull: Communicative competence Type: general – SubjectFull: MacArthur Communicative Development Inventories Type: general Titles: – TitleFull: A statistical estimate of infant and toddler vocabulary size from CDI analysis. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mayor, Julien – PersonEntity: Name: NameFull: Plunkett, Kim IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 1363755X Numbering: – Type: volume Value: 14 – Type: issue Value: 4 Titles: – TitleFull: Developmental Science Type: main |
| ResultId | 1 |
