Hughes E C, Arthur R H, Johnson R L
J Am Aud Soc. 1979 Jul-Aug;5(1):17-20.
The repeatability of W-22 PB tests at levels of speech reception threshold (SRT) plus 5 to 30 dB in quiet and in white noise at S/N = 0 and 7 dB at a level of SRT plus 20 dB for 28 subjects with sensorineural hypoacusis. Standard deviations at various levels were from 9 to 13% compared to a standard deviation of less than 8% at SRT plus 40 dB. The lower variability at SRT plus 40 dB permits satisfactory confidence in the average of two measurements. However, it was found that more tests are required for the same confidence at the lower sensation levels. A protocol is suggested for carrying out this requirement.
对28名感音神经性听力减退患者，在安静环境下言语接受阈（SRT）加5至30 dB的水平以及在信噪比为0和7 dB的白噪声环境下，于SRT加20 dB的水平进行W - 22 PB测试的重复性。与SRT加40 dB时标准差小于8%相比，不同水平下的标准差为9%至13%。SRT加40 dB时较低的变异性使得对两次测量的平均值有令人满意的置信度。然而，发现在较低感觉水平下要达到相同的置信度需要进行更多测试。建议了一个执行此要求的方案。
