Development of the Persian version of high-frequency emphasis quick speech in noise

The quick speech in noise (Q-SIN) test shows the difficulty of speech perception in noise by specifying signal to noise ratio (SNR) loss. Although the Persian version of Q-SIN has been already constructed, the high-frequency emphasis version of this test is not available. The present study aimed to construct six lists with high-frequency emphasis and implement it. We are going to prepare a high-frequency emphasis version of Q-SIN and then test
it on a small sample. First, researchers designed the relevant sentences; then experts examined their content and face validity. According to the criteria for developing the Q-SIN test, six lists with high-frequency emphasis were prepared. The test was examined on 26 (13 male and 13 female), 18−35 years old individuals with normal hearing. To determine the test reliability, it was re-administered three weeks later with the same conditions. Of 76 sentences prepared, 36 sentences received enough credit after determination of their content and face validity. These 36 sentences were used to make 6 lists. The mean value of SNR50 in the Persian language was obtained -4 dB. The mean values of SNR loss in 6 lists were -1.65, -1.8, -2.23, -1.61, -2.38 and -2.07. The results showed equivalency of lists 1, 2, 3, 4, and 6. Examination of test-retest reliability indicated that all lists except the list 2were reliable. The lists of 1, 3, 4, and 6 are reli able and equivalent and can be used in clinical application.