McDaniel D M, Cox R M
Department of Special Education and Communicative Disorders, Arkansas State University, State University.
J Speech Hear Res. 1992 Jun;35(3):686-93. doi: 10.1044/jshr.3503.686.
The SIR test was created for use in hearing aid comparisons. The test protocol obtains listener judgments of the intelligibility of connected speech passages. This study was conducted to evaluate the effectiveness of the SIR test in differentiating among hearing aids. Specific research questions were (a) Is the sensitivity of the SIR test sufficient for differentiating among very similar and slightly dissimilar hearing aids? (b) Does the SIR test result in reliable hearing aid rankings? and (c) What are the effects of using shortened connected speech passages? Ten listeners with hearing impairments rated the intelligibility of both full-length and shortened SIR test passages while wearing each of four individually selected hearing aids representing three different frequency/gain prescriptions. Results suggested that the SIR test is capable of differentiating among slightly dissimilar hearing aids and that hearing aid rankings resulting from speech intelligibility ratings were reliable. The decision to use full-length or shortened SIR test passages depends on the outcome the user wishes to maximize. Under the conditions used in this study, maximum sensitivity was achieved with ratings from five shortened passages, whereas maximum reliability was obtained with three full-length passages.
SIR测试是为助听器比较而设计的。该测试方案获取听众对连贯语音段落可懂度的判断。本研究旨在评估SIR测试在区分不同助听器方面的有效性。具体研究问题包括：(a) SIR测试的敏感度是否足以区分非常相似和略有不同的助听器？(b) SIR测试能否得出可靠的助听器排名？以及(c) 使用缩短的连贯语音段落有何影响？十名听力受损的听众在佩戴分别代表三种不同频率/增益处方的四台单独挑选的助听器时，对完整长度和缩短的SIR测试段落的可懂度进行了评分。结果表明，SIR测试能够区分略有不同的助听器，并且由语音可懂度评分得出的助听器排名是可靠的。决定使用完整长度还是缩短的SIR测试段落取决于用户希望最大化的结果。在本研究使用的条件下，五个缩短段落的评分可实现最大敏感度，而三个完整长度段落的评分可获得最大可靠性。
