Vignette d'image

Schwob, Salomé

Nom
Schwob, Salomé
Affiliation principale
Email
salome.schwob@unine.ch
Identifiants
https://libra.unine.ch/handle/123456789/1139
_
0000-0003-4420-4876

Résultat de la recherche

Filtres

2
2
2
Réinitialiser les filtres

Paramètres

Voici les éléments 1 - 2 sur 2
  • Publication
    Accès libre
    Detecting Developmental Language Disorder in Monolingual and Bilingual Children: Comparison of Language-Specific and Crosslinguistic Nonword Repetition Tasks in French and Portuguese
    (2022)
    Schwob, Salomé 
    ;
    Skoruppa, Katrin 
    Abstract Purpose: Over the last decades, many studies have documented the clinical potential of nonword repetition (NWR) tasks for detecting developmental language disorder in mono- (MON) and bilingual (BIL) children by unveiling their difficulties in short-term memory and phonological accuracy. However, the precise nature of the nonwords to be used and the best scoring methods remain under debate. Some authors (e.g., Gutiérrez-Clellen & Simon-Cereijido, 2010) support the use of "language-specific" nonwords designed for a given test language in standardized tests. Other authors (e.g., Chiat, 2015) advocate the use of "crosslinguistic" stimuli, thus allowing assessment independently of the languages spoken by the child. Method: This research note compares two language-specific tasks (French vs. Portuguese) and a crosslinguistic NWR task in a population of 5- to 7-year-old MON and BIL children. Group comparisons (children with vs. without developmental language disorder; MON vs. BIL children), an error analysis, sensitivity and specificity calculations (assessed according to the recommendations of Plante and Vance, 1994, and Youden, 1950) are reported. Results: All three tasks significantly differentiate children with and without developmental language disorder with large effect sizes but did not show an effect for bilingualism, which is encouraging for the BIL assessment. As expected, an influence of children's age and length and complexity of the stimuli was also found. The language-specific French task was found to be the most sensitive (max. 88%) and specific (max. 92%); the crosslinguistic task also reached good accuracy percentages for the BIL group (max. 82% sensitivity and 84% specificity). Conclusion: This research note adds to the evidence that NWR tasks are promising tolls for the identification of MON and BIL children with developmental language disorder.
  • Publication
    Accès libre
    Using Nonword Repetition to Identify Developmental Language Disorder in Monolingual and Bilingual Children: A Systematic Review and Meta-Analysis
    (2021)
    Schwob, Salomé 
    ;
    Laurane Eddé
    ;
    Laure Jacquin
    ;
    Mégane Leboulanger
    ;
    Margot Picard
    ;
    Patricia Ramos Oliveira
    ;
    Skoruppa, Katrin 
    Purpose: A wealth of studies has assessed the diagnostic value of the nonword repetition task (NWRT) for the detection of developmental language disorder (DLD) in the clinical context of speech and language therapy, first in monolingual children and, more recently, in bilingual children. This review article reviews this literature systematically and conducts a meta-analysis on the discriminative power of this type of task in both populations. Method: Three databases were used to select articles based on keyword combinations, which were then reviewed for relevance and methodological rigor based on internationally recognized checklists. From an initial pool of 488 studies, 46 studies were selected for inclusion in the systematic review, and 35 of these studies could be included in a meta-analysis. Results: Most of the articles report significant discrimination between children with and without DLD in both monolingual and bilingual contexts, and the meta-analysis shows a large mean effect size. Three factors (age of the child, linguistic status, and language specificity of the task) yielded enough quantitative data for further exploration. Subgroups analysis shows variance in effect sizes, but none of the three factors, neither their interactions, were significant in a metaregression. We discuss how other, less explored factors (e.g., nature of the stimuli, scoring methods) could also contribute to differences in results. Sensitivity and specificity analyses reported in 33 studies confirmed that, despite possible effect size differences, the diagnostic accuracy of the NWRT is generally near thresholds considered to be discriminatory. It generally increases when it is combined with other tasks (e.g., parental questionnaire). Conclusions: This review indicates that the NWRT is a promising diagnostic tool to identify children with DLD in monolingual and bilingual contexts with a large mean effect size. However, it seems necessary to choose the precise NWRT materials based on the children’s language background and to complement the assessment sessions with other tools in order to ensure diagnosis and to obtain complete language profile of the child.