Voice Activity and Participation Profile in Assessing the Effects of Voice Disorders on Quality of Life: Estimation of the Validity, Reliability and Responsiveness of the Finnish Version

Abstract

VAPP appeared to be valid and responsive to the intervention. In test-retest reliability, although intraclass correlation was high (0.905), there was a trend for the second answers to be better than the first. Some proposals are given to improve the practicality of the VAPP form.