Reliability and Validity of the Korean Matrix Sentence-in-Noise Recognition Test for Older Listeners with Normal Hearing and with Hearing Impairment

Purpose: The aim of this study was to examine test-retest reliability and validity the adaptive Korean matrix sentence-in-noise test for elderly group with normal hearing (ENH) impairment (EHI).Methods: Twenty ENH listeners 20 EHI based on World Health Organization (WHO)-proposed hearing-impairment grade participated. For test, each subject assessed twice in a 2-week interval using three types noise: speech-shaped noise, International Collegium Rehabilitative Audiology Speech Test Signal. agreement judged by intraclass correlation coefficient (ICC) Bland-Altman plots. To differentiate between real change random measurement error, standard error (SEM) minimal detectable (MDC) were also obtained as another index. concurrent validity, results Matrix compared Korean-version Hearing In Noise (K-HINT).Results: good excellent groups (ICC, 0.84~0.98). Both showed stable reliability, but smaller SEM MDC values than group. No systematic errors found from K-HINT high, revealing validity.Conclusion: appeared be valid reliable elderly. can utilized clinical speech-in-noise ability individuals.