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- Title
The Moroccan Arabic Bedside Western Aphasia Battery–Revised: Linguistic and Psychometric Properties.
- Authors
Ouardi, Loubna El; Yeou, Mohamed; Rami, Youssef; Belahsen, Mohammed Faouzi
- Abstract
Purpose: The objectives of this study were (a) to linguistically and culturally adapt the English bedside version of the Western Aphasia Battery–Revised (Bedside WAB-R) into Moroccan Arabic (MA) and (b) to assess its psychometric properties. Method: The Bedside MA-WAB-R was piloted on a population of 20 partici- pants after a process of linguistic adaptation from English to MA. To verify the psychometric properties of the test, a group of healthy controls (n = 106) and a group of persons with chronic aphasia (n = 52) completed the Bedside MA- WAB-R. The test’s content validity, construct validity, and the concurrent valid- ity of the aphasia classification system were examined. In addition, the interrater reliability, intrarater reliability, test–retest reliability, and internal consistency of the instrument were evaluated. Results: The results indicated that the Bedside MA-WAB-R overall met stan- dard criteria for excellent psychometric properties, as evinced by high content and construct validity and concurrent validity with independent measures of aphasia diagnosis (speech-language pathologists’ impression and lesion loca- tion) as well as high internal consistency, inter- and intrarater reliability, and test–retest reliability. The test was also found to have very high sensitivity and specificity for the detection of aphasia, as revealed by the performance of con- trols. By controlling for age and educational level effects, specific cutoff values were determined to optimize the aphasia diagnosis. Conclusions: The Bedside MA-WAB-R is the first standardized quick aphasia assessment tool with associated psychometric properties for clinical use with an MA-speaking population, particularly within the 26- to 58-year age range. It meets standard criteria for a valid and reliable measure than can have a variety of clinical and research applications.
- Subjects
MOROCCO; DIAGNOSIS of aphasia; KRUSKAL-Wallis Test; STATISTICS; HOSPITAL patients; RESEARCH evaluation; STATISTICAL reliability; RESEARCH methodology evaluation; LINGUISTICS; RESEARCH methodology; MANN Whitney U Test; PSYCHOMETRICS; MULTITRAIT multimethod techniques; INTER-observer reliability; PEARSON correlation (Statistics); CRONBACH'S alpha; ROOMS; DESCRIPTIVE statistics; SENSITIVITY &; specificity (Statistics); RECEIVER operating characteristic curves; DATA analysis
- Publication
Journal of Speech, Language & Hearing Research, 2023, Vol 66, Issue 7, p2379
- ISSN
1092-4388
- Publication type
Article
- DOI
10.1044/2023_JSLHR-22-00475