Individual differences in lexical processing efficiency and vocabulary in toddlers: A longitudinal investigation
-
Altmetric Citations
Description
Research on infants' online lexical processing by Fernald, Perfors, and Marchman (2006) revealed substantial individual differences that are related to vocabulary development, such that infants with better lexical processing efficiency show greater vocabulary growth across time. Although it is clear that individual differences in lexical processing efficiency exist and are meaningful, the theoretical nature of lexical processing efficiency and its relation to vocabulary size is less clear. In...[Show more]
dc.contributor.author | Donnelly, Seamus | |
---|---|---|
dc.contributor.author | Kidd, Evan | |
dc.date.accessioned | 2021-02-05T03:59:43Z | |
dc.identifier.issn | 0022-0965 | |
dc.identifier.uri | http://hdl.handle.net/1885/222097 | |
dc.description.abstract | Research on infants' online lexical processing by Fernald, Perfors, and Marchman (2006) revealed substantial individual differences that are related to vocabulary development, such that infants with better lexical processing efficiency show greater vocabulary growth across time. Although it is clear that individual differences in lexical processing efficiency exist and are meaningful, the theoretical nature of lexical processing efficiency and its relation to vocabulary size is less clear. In the current study, we asked two questions: (a) Is lexical processing efficiency better conceptualized as a central processing capacity or as an emergent capacity reflecting a collection of word-specific capacities? and (b) Is there evidence for a causal role for lexical processing efficiency in early vocabulary development? In the study, 120 infants were tested on a measure of lexical processing at 18, 21, and 24 months, and their vocabulary was measured via parent report. Structural equation modeling of the 18-month time point data revealed that both theoretical constructs represented in the first question above (a) fit the data. A set of regression analyses on the longitudinal data revealed little evidence for a causal effect of lexical processing on vocabulary but revealed a significant effect of vocabulary size on lexical processing efficiency early in development. Overall, the results suggest that lexical processing efficiency is a stable construct in infancy that may reflect the structure of the developing lexicon. | |
dc.description.sponsorship | This research was supported by the Australian Research Council (CE140100041). | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_AU | |
dc.publisher | Academic Press | |
dc.rights | © 2019 Crown Copyright | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Journal of Experimental Child Psychology | |
dc.subject | Lexicon | |
dc.subject | Language acquistion | |
dc.subject | Language processing | |
dc.subject | Vocabulary | |
dc.subject | Development | |
dc.subject | Cognition | |
dc.title | Individual differences in lexical processing efficiency and vocabulary in toddlers: A longitudinal investigation | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 192 | |
dc.date.issued | 2020-04 | |
local.identifier.absfor | 170102 - Developmental Psychology and Ageing | |
local.identifier.ariespublication | u6269649xPUB473 | |
local.publisher.url | https://www.sciencedirect.com/ | |
local.type.status | Accepted Version | |
local.contributor.affiliation | Donnelly, Seamus, College of Health and Medicine, ANU | |
local.contributor.affiliation | Kidd, Evan, College of Health and Medicine, ANU | |
dc.relation | http://purl.org/au-research/grants/arc/CE140100041 | |
local.bibliographicCitation.startpage | 1 | |
local.bibliographicCitation.lastpage | 21 | |
local.identifier.doi | 10.1016/j.jecp.2019.104781 | |
local.identifier.absseo | 920501 - Child Health | |
dc.date.updated | 2020-11-02T04:27:23Z | |
local.identifier.scopusID | 2-s2.0-85078141783 | |
dcterms.accessRights | Open Access | |
dc.provenance | https://v2.sherpa.ac.uk/id/publication/11373..."The Accepted Version can be archived in an Institutional Repository. 24 Months. CC BY-NC-ND." from SHERPA/RoMEO site (as at 15/02/2021). | |
dc.rights.license | CC-BY-NC-ND 4.0 license | |
Collections | ANU Research Publications |
Download
File | Description | Size | Format | Image |
---|---|---|---|---|
JECP_Final.pdf | 545.62 kB | Adobe PDF |
This item is licensed under a Creative Commons License
Updated: 17 November 2022/ Responsible Officer: University Librarian/ Page Contact: Library Systems & Web Coordinator