普通话快速噪声下言语测试计分公式及等价性评估

Scoring formula research and equivalence evaluation of Mandarin Quick Speech-in-Noise test materials in China's Mainland

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。

Objective：To discuss the scoring formula and evaluate the lists equivalence of Mandarin Quick Speech-in-Noise（M-Quick SIN）test materials in China's Mainland,and for standardizing our research.Method：Double 39subjects with normal hearing were participated in part one and part two of our experiments,respectively.20,18,15,13,10,8,5,3,0,-2,-5,-7,-10dB SNR were presented in part one;and 20,15,10,5,0,-5dB SNR were presented in part two.The results were analyzed by SPSS 13.0.Result：SNR-50was-2.24dB SNR and＂SNR loss=24.5-correct words＂was defined as the scoring formula.All the 13lists had the equivalent difficulty.Conclusion：Defined＂SNR loss= 24.5-correct words＂as the scoring formula of M-Quick SIN,and the 13lists had better difficulty equivalence,which could be used in our further clinical research.