The Radboud dysarthria assessment: validity and reliability of the Arabic version.

To cross-culturally adapt and validate the Radboud Dysarthria Assessment (RDA) and the speech component of the Radboud Oral Motor inventory for Parkinson's disease (ROMP-speech) into the Arabic language among Lebanese subjects with dysarthria. This study included 50 participants with dysarthria. The Arabic versions of the RDA (A-RDA) and the ROMP-speech (A-ROMP-speech) were administered in addition to the Arabic Speech Intelligibility test, the Lebanese Voice Handicap Index-10 (VHI-10lb) and semantic verbal fluency tasks. The maximum performance tasks were analyzed using the Praat software. The A-RDA qualitative recording form and the A-ROMP-speech were assessed for construct validity and internal consistency. The convergent validity of the maximum performance tasks, the severity scale, and the A-ROMP-speech were evaluated. Exploratory factor analysis of the qualitative recording form extracted 3 factors explaining 82.973% of the total variance, and it demonstrated high internal consistency (α = 0.912). The maximum performance tasks of the RDA correlated significantly with the corresponding Praat scores. The severity scale and the A-ROMP-speech correlated fairly to strongly with the Arabic Speech Intelligibility test (r The A-RDA and the A-ROMP-speech are valid and reliable dysarthria tools among Lebanese subjects. The present study cross-culturally adapts and validates a dysarthria assessment tool in the Arab culture.The Arabic Radboud Dysarthria Assessment (A-RDA) and the speech component of the Arabic Radboud Oral Motor inventory for Parkinson’s disease-speech component (A-ROMP-speech) are valid and reliable measures to be used among Lebanese individuals with dysarthria.The use of the A-RDA and the A-ROMP-speech will contribute to better therapeutic outcomes and will lead to a common language among speech and language therapists.