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Publication Marcotte et coll. (2024)

Référence complète

Karine Marcotte, Alexandra Roy, Amélie Brisebois, Claudie Jutras, Carol Leonard, Elizabeth Rochon et Simona Maria Brambati(2024). Reliability of the picture description task of the Western Aphasia Battery – Revised in Laurentian French Persons Without Brain Injury

The Clinical Neuropsychologist. https://doi.org/10.1080/13854046.2024.2340777

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RÉSUMÉ (en anglais)

Objective: Limited normative data (including psychometric properties) are currently available on discourse tasks in non-dominant languages such as Laurentian (Quebec) French. The lack of linguistic and cultural adaptation has been identified as a barrier to discourse assessment. The main aim of this study is to document inter-rater and test-retest reliability properties of the picnic scene of the Western Aphasia Battery – Revised (WAB-R), including the cultural adaptation of an information content unit (ICU) list, and provide a normative reference for persons without brain injury (PWBI). 

Method: To do so, we also aimed to adapt an ICU checklist culturally and linguistically for Laurentian French speakers. Discourse samples were collected from 66 PWBI using the picture description task of the WAB-R. The ICU list was first adapted into Laurentian French. Then, ICUs and thematic units (TUs) were extracted manually, and microstructural variables were extracted using CLAN. Inter-rater reliability and test-retest reliability were determined. 

Results: Excellent inter-rater reliability was obtained for ICUs and TUs, as well as for all microstructural variables, except for mean length of utterance, which  was found to be good. Conversely, test-retest reliability ranged from poor to moderate for all variables. 

Conclusions: The present study provides a validated ICU checklist for clinicians and researchers working with Laurentian French speakers when assessing discourse with the picnic scene of the WAB-R. It also addresses the gap in available psychometric data regarding inter-rater and test-retest reliability in PWBI.