Measures of phonological short-term memory and their relationship to vocabulary development

Citation
Se. Avons et al., Measures of phonological short-term memory and their relationship to vocabulary development, APPL PSYCH, 19(4), 1998, pp. 583-601
Citations number
34
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Psycology
Journal title
APPLIED PSYCHOLINGUISTICS
ISSN journal
0142-7164 → ACNP
Volume
19
Issue
4
Year of publication
1998
Pages
583 - 601
Database
ISI
SICI code
0142-7164(199812)19:4<583:MOPSMA>2.0.ZU;2-7
Abstract
Vocabulary scores, word span, nonword repetition, rhyme detection, and arti culation rate measures were obtained for a group of 30 preschool children w ith a mean age of 4;11. After allowing for age and intelligence, it was fou nd that the best predictors of vocabulary were memory span, rhyme detection , and nonword repetition, accounting for 19%, 15%, and 13% of the variance, respectively. Of these children, 28 were tested again on the same measures 13 months later. At the later stage, memory span and rhyme scores again pr edicted vocabulary to a significant extent, but nonword repetition score di d not. Of the measures taken initially, memory span and rhyme detection sig nificantly predicted later vocabulary scores, whereas nonword repetition ju st failed to reach significance. Cross-lagged correlations showed that memo ry span and rhyme detection on the first test predicted later vocabulary af ter partialing out initial vocabulary scores. However, initial vocabulary s cores did not predict later memory span (or rhyme detection) after partiali ng out the initial span (or rhyming) scores. Articulation rate was not sign ificantly related to vocabulary at either age. The results are interpreted as indicating that the phonological store of working memory (required by wo rd span, rhyme detection, and nonword repetition, but independent of articu lation rates) contributes to vocabulary development.