Punch J L, Howard M T
J Am Aud Soc. 1978 Sep-Oct;4(2):69-76.
The capacity of listeners to yield reliable and valid preferences for hearing aid-processed speech was evaluated by the method of paired comparisons. Discourse by a male talker with General American dialect was processed by five hearing aids under conditions of quiet and a background of multitalker babble. Hearing aid-processed Revised Central Institute for the Deaf Sentences spoken by the same male talker and embedded in the same multitalker background were used as stimuli in establishing criterion intelligibility performance. All stimuli were tape-recorded and delivered via monaural earphone to 90 normal listeners. Test-retest results revealed reliability coefficients of 0.94 and 0.65 on the paired-comparison condition in quiet and in babble, respectively. A low-positive relationship was observed between responses on the two subjective tasks. Essentially negligible correlations were found between subjective preferences on these individual conditions and performance on the sentence task. General conditions are hypothesized under which paired-comparison judgments of intelligibility might be expected to correspond favorably with objective performance.
通过配对比较法评估了听众对经助听器处理的语音产生可靠且有效的偏好的能力。一名操通用美国方言的男性谈话者的话语在安静环境以及多说话者嘈杂背景条件下由五台助听器进行处理。由同一名男性谈话者说出并嵌入相同多说话者背景中的经助听器处理的修订版中央聋人研究所句子被用作建立标准可懂度表现的刺激材料。所有刺激材料都被录制在磁带上，并通过单声道耳机呈现给90名正常听众。重测结果显示，在安静和嘈杂环境下的配对比较条件下，可靠性系数分别为0.94和0.65。在两项主观任务的反应之间观察到低正相关关系。在这些个体条件下的主观偏好与句子任务表现之间发现的相关性基本可以忽略不计。假设了一些一般条件，在这些条件下，可懂度的配对比较判断可能有望与客观表现良好对应。
