Telediagnostic assessment of intelligibility in dysarthria: A pilot investigation of MVP-online
Posted by Callier Library on July 1, 2008
from the Journal of Communication Disorders
Background
A most important index of functional impairment in dysarthria is intelligibility. The Munich Intelligibility Profile (MVP) is a computer-based method for the assessment of the intelligibility of dysarthric patients. A multi-user online version of MVP is now available.
Aims
To describe the structure of MVP-online and to evaluate important psychometric features of the test.
Methods
MVP-online was used in 200 test administrations (48 normal, 152 dysarthric). Intelligibility scores were based on 884 listening sessions (30 listeners). Various measures of listener agreement and of internal consistency were examined.
Results
Normal speakers achieved scores between 95% and 100% intelligible, the range for dysarthric patients was 20–100%. Test reliability turned out to be good when scores from 2 to 3 listeners were averaged. The amounts of long-term listener learning and of within-test listener adaptation were low. MVP-online proved to have a high internal consistency.
Conclusions
MVP-online is an efficient, reliable and valid method for the assessment of intelligibility in dysarthria. It is useful for clinical standard diagnosis, for large-scale studies of speech motor impairment, and for longitudinal studies, e.g. in treatment research.
