Heckendorf A L, Wiley T L, Wilson R H
Department of Communicative Disorders, University of Wisconsin, Madison, USA.
J Am Acad Audiol. 1997 Jun;8(3):163-72.
The purpose of this study was to establish normative articulation functions for the Hirsh recordings of the CID W-22 word lists and te Rush Hughes recordings of the PB-50 word lists as recorded on the VA compact disc. Twenty-four young adults with normal hearing listened to both sets of materials presented in quiet at 12 levels (0-56 dB HL). Presentation levels on average needed to be 10 dB higher for the PB-50 word lists to obtain word recognition performance scores equal to those for the W-22s. Maximum word recognition scores of 95 to 100 percent were obtained for the W-22s at lower presentation levels (> 40 dB HL), compared to 80 to 90 percent for the PB-50s at the maximum presentation level (56 dB HL). Mean slopes for the W-22 and PB-50 functions were 4.1 percent/dB and 1.9 percent/dB, respectively. Test-retest reliability was judged to be clinically appropriate for both sets of materials. Item analyses revealed a substantially skewed distribution toward easy items for the W-22 word lists compared to a more balanced distribution of item difficulty for the PB-50 lists. List equivalency was also judged to be clinically appropriate for the PB-50 word lists.
本研究的目的是为美国退伍军人事务部（VA）光盘上记录的CID W-22单词列表的赫什（Hirsh）录音以及PB-50单词列表的拉什·休斯（Rush Hughes）录音建立标准清晰度功能。24名听力正常的年轻人在安静环境中以12个声级（0 - 56 dB HL）聆听了这两组材料。对于PB-50单词列表，平均呈现声级需要比W-22单词列表高10 dB，才能获得与W-22单词列表相同的单词识别成绩分数。在较低呈现声级（> 40 dB HL）下，W-22单词列表的最大单词识别分数为95%至100%，相比之下，PB-50单词列表在最大呈现声级（56 dB HL）下的最大单词识别分数为80%至90%。W-22和PB-50功能的平均斜率分别为4.1%/dB和1.9%/dB。两组材料的重测信度在临床上均被认为是合适的。项目分析显示，与PB-50列表中更平衡的项目难度分布相比，W-22单词列表的项目分布明显向简单项目倾斜。PB-50单词列表的列表等效性在临床上也被认为是合适的。
