Gengel R W, Miller L, Rosenthal E
Ear Hear. 1981 Mar-Apr;2(2):78-81. doi: 10.1097/00003446-198103000-00004.
Two studies were conducted wherein college students with normal hearing sensitivity listened to CID W-22 recordings (Technisonics Studios) mixed with white noise. Four-word discrimination scores were obtained from each listener. In one study, a speech-to-noise ratio of approximately +1 dB was used whereas +7 dB was used in the other. Large standard deviations and low correlations indicate that the use of background noise with this clinical word discrimination test is associated with a relatively large amount of response variability and unreliability. These results suggest that the performance score obtained from a single list of CID W-22 presented in noise may not be a reliable indicator of a listener's true discrimination ability and therefore clinical interpretation of a listener's performance should be made with caution.
进行了两项研究，让听力敏感度正常的大学生收听与白噪声混合的CID W - 22录音（Technisonics Studios）。从每个听众那里获取四字辨别分数。在一项研究中，使用了大约 +1 dB的言语噪声比，而在另一项研究中使用的是 +7 dB。较大的标准差和低相关性表明，在这种临床言语辨别测试中使用背景噪声会导致相对大量的反应变异性和不可靠性。这些结果表明，从噪声中呈现的单个CID W - 22列表获得的表现分数可能不是听众真实辨别能力的可靠指标，因此对听众表现的临床解读应谨慎进行。
