[Munich Intelligibility Profile. Studies of reliability and validity]

The 'Münchner Verständlichkeitsprofil (MVP)' (Munich Intelligibility Profile) is a PC-based method for assessment of the intelligibility of dysarthric speakers. Analyses of its reliability and validity were based on a total of 101 patients and 16 normal speakers as well as a group of 45 listeners. The reliability of the overall MVP score was determined using non-parametric analyses of variance and between-listener correlations. Retest reliability was measured for a subgroup of 5 listeners. Test validity was analyzed by correlating MVP scores with three external criteria (expert ratings, listeners' ratings, transcripts). Further, relevant aspects of the test construction were tested empirically. Finally, regression analyses were carried out in order to demonstrate that different MVP lists are equivalent in predicting transcription-based intelligibility scores.