Copyright © American Speech-Language-Hearing Association From: Reliability and Stability of Various Hearing-Aid Outcome Measures in a Group of Elderly Hearing-Aid Wearers J Speech Hear Res. 1996;39(5):923-935. doi:10.1044/jshr.3905.923 Legend: Means for the four subscales of the abbreviated HAPI as a function of post-fit interval. For reference, a HAPI subscale value of “1” means that the hearing aid was judged to be “very helpful,” and a subscale score of “2” indicates that the hearing aid was judged to be “helpful”. Date of download: 12/26/2017 Copyright © American Speech-Language-Hearing Association