Articulation functions for normal and hearing impaired subjects on the MRT and SSI tests in multitalker noise
R. M. Miner, Jeffrey L. Danhauer · The Journal of the Acoustical Society of America · 1976
Articulation functions were established for three groups using the Synthetic Sentence Identification (SSI) test and the Modified Rhyme Test (MRT) in three message competition ratios (MCR's) of multi-talker noise. Mean scores on the SSI and the MRT were obtained for 35 normally hearing and six flat sensorineural and six high-frequency sloping sensorineural hearing impaired subjects. An ANOVA revealed a significant difference between tests, groups, presenation conditions, and significant interactions between variables. SSI scores were not significantly different among the tested groups while the MRT scores were significantly different at two MCR conditions. Articulation functions were considered typical for each group tested. The results suggest that the SSI and MRT are two different tests, examining two separate areas of discrimination.