普通话快速噪声下言语测试计分公式及等价性评估

发布时间：2019-02-15 10:41

【摘要】：目的:针对普通话快速噪声下言语测试材料(M-Quick SIN)进行结果计分公式参数的探讨及分组材料等价性的评估,以期合理化计分标准并初步筛选等价性句表用于日后研究和应用。方法:先后分别选取2组39例18~27岁听力正常受试者进行M-Quick SIN测试。第一部分在20,18,15,13,10,8,5,3,0,-2,-5,-7,-10dB信噪比条件下测试,验证之前所得50%识别率信噪比(SNR-50)的可信性并找出用于测试的6个信噪比;第二部分在20,15,10,5,0,-5dB信噪比条件下测试,分析各组材料P-I曲线走势,用统计学软件对结果进行分析。结果:SNR-50为-2.24dB SNR符合前期研究95%置信区间[-2.40,-1.60]dB SNR范围;20,15,10,5,0,-5dB SNR包含了50%~100%识别率范围,确定公式为"信噪比损失=24.5-答对词数"。13组测试材料组间具有难度等价性。结论:确定公式"信噪比损失=24.5-答对词数"为M-Quick SIN测试结果计分公式;13组测试句表具有难度等价性,可初步应用于临床研究。
[Abstract]:Objective: to investigate the parameters of the score formula and evaluate the equivalence of grouping materials for speech test materials (M-Quick SIN) under rapid noise in Mandarin. In order to rationalize the scoring criteria and preliminary screening of the equivalent sentence table for future research and application. Methods: two groups of 39 normal hearing subjects aged 18 to 27 years were selected for M-Quick SIN test. In the first part, the reliability of the 50% recognition rate (SNR-50) obtained before the test is verified under the SNR condition of 20 / 18 / 15 / 13 / 10 / 8 / 8 / 3 / 3 / 0 ~ 0 ~ (-2) ~ (-2) ~ (-5) ~ (-5) ~ (-7) ~ (-1) dB, and the six signal-to-noise ratio (SNR) used in the test are found out. In the second part, the P-I curves of each group of materials were analyzed and the results were analyzed by statistical software under the condition of 20 ~ 15 ~ 10 ~ 10 ~ 5 ~ 5 ~ 0 ~ 5 dB signal-to-noise ratio (SNR). Results: SNR-50 was-2.24dB SNR consistent with 95% confidence interval [-2.40 ~ 1.60] dB SNR range. The range of recognition rate is 100% and the formula is: "SNR loss = 24.5- number of correct words". There is difficulty equivalence among 13 groups of test materials. Conclusion: the formula "SNR loss = 24.5- number of correct words" is the score formula of M-Quick SIN test results, and 13 groups of test sentences have difficulty equivalence and can be applied to clinical research.
【作者单位】：首都医科大学附属北京同仁医院耳鼻咽喉头颈外科北京市耳鼻咽喉科研究所;
【基金】：国家自然科学基金资助项目(No:81070784)
【分类号】：R767.92

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