title: Validation of list equivalency for Mandarin speech materials to use with cochlear implant listeners.
abstract: Speech materials validated with normal-hearing listeners may not be appropriate for clinical assessment of cochlear implant (CI) users. The aim of this study was to validate list equivalency of the Mandarin Speech Perception (MSP) sentences, disyllables, and monosyllables in Mandarin-speaking CI patients.
  
  
  
  Recognition of MSP sentences, disyllables, and monosyllables each were measured for all 10 lists.
  
  
  
  67 adult and 32 pediatric Mandarin-speaking CI users.
  
  
  
  There was no significant difference between adult and pediatric subject groups for all test materials. Significant differences were observed among lists within each test. After removing one or two lists within each test, no significant differences were observed among the remaining lists. While there was equal variance among lists within a given test, the variance was larger for children than for adults, and increased from monosyllables to disyllables to sentences.
  
  
  
  Some adjustment to test lists previously validated with CI simulations was needed to create perceptually equivalent lists for real CI users, suggesting that test materials should be validated in the targeted population. Differences in mean scores and variance across test materials suggest that CI users may differ in their ability to make use of contextual cues available in sentences and disyllables.
authors.affiliation: a Department of Otolaryngology, Head and Neck Surgery , Beijing TongRen Hospital, Capital Medical University, Ministry of Education of China , Beijing , P. R. China and.
authors.forename: Yongxin
authors.initials: Y
authors.lastname: Li
authors.affiliation: a Department of Otolaryngology, Head and Neck Surgery , Beijing TongRen Hospital, Capital Medical University, Ministry of Education of China , Beijing , P. R. China and.
authors.forename: Shuncheng
authors.initials: S
authors.lastname: Wang
authors.affiliation: a Department of Otolaryngology, Head and Neck Surgery , Beijing TongRen Hospital, Capital Medical University, Ministry of Education of China , Beijing , P. R. China and.
authors.forename: Qiaodang
authors.initials: Q
authors.lastname: Su
authors.affiliation: b Department of Head and Neck Surgery, David Geffen School of Medicine , UCLA , Los Angeles , CA , USA.
authors.forename: John J
authors.initials: JJ
authors.lastname: Galvin
authors.affiliation: b Department of Head and Neck Surgery, David Geffen School of Medicine , UCLA , Los Angeles , CA , USA.
authors.forename: Qian-Jie
authors.initials: QJ
authors.lastname: Fu
mesh_terms: D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001302:Audiometry, Speech / Q000379:methods*; D002648:Child; D002681:China; D019929:Cochlear Implantation / Q000295:instrumentation*; D003054:Cochlear Implants; D003463:Cues; D004558:Electric Stimulation; D005260:Female; D006309:Hearing; D034381:Hearing Loss / Q000175:diagnosis / Q000503:physiopathology / Q000523:psychology / Q000534:rehabilitation*; D006801:Humans; D008297:Male; D008875:Middle Aged; D019986:Persons with Hearing Disabilities / Q000523:psychology / Q000534:rehabilitation*; D010700:Phonetics; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D013061:Speech Acoustics; D013067:Speech Perception; D055815:Young Adult
keywords: Cochlear implant; Mandarin speech test; list equivalency