title: [Digital recording and equivalent evaluation of Mandarin speech test materials].
abstract: OBJECTIVE
  After preliminary edit and equivalent tests, Mandarin speech test materials (MSTM) were digitally recorded and further tested in order to get multi-center analysis and clinical application.
  
  
  METHODS
  The contents of the lists were modified and the trial lists were added. All materials were digitally recorded into 3 CDs with international criterions. Each CD contained a calibration pure-tone, a trial list and the speech test lists. MSTM contained 10 lists of monosyllabic words with 50 words in each list, 10 lists of spondees with 50 disyllabic words (100 Chinese characters) in each lists, and 30 lists of sentences with 10 sentences in each list. Sixty normal-hearing college students were tested. The tests were conducted in the sound booths with earphones. The presentation levels of the monosyllables, disyllables and sentences were different. The presentation levels considered as the scores were about 50% correct,in which condition the speech intelligibility was most sensitive.
  
  
  RESULTS
  Statistic analysis showed that two sets (9 lists in each set) of monosyllable lists, 9 disyllable lists and 27 sentence lists were equivalent in difficulty. If the clinicians do not need so many lists to test the patients, they had better use the most equivalent ones.
  
  
  CONCLUSIONS
  The equivalent Mandarin speech lists have been made into CDs and ready to be used clinically. But the multi-center evaluation is needed.
authors.affiliation: Clinical Audiology Center, Beijing Institute of Otolaryngology, Affiliated Beijing Tongren Hospital of Capital University of Medical Sciences, Beijing,100005, China. a-zhang@263.net
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
authors.forename: Shuo
authors.initials: S
authors.lastname: Wang
authors.forename: Liang
authors.initials: L
authors.lastname: Wang
authors.forename: Jing
authors.initials: J
authors.lastname: Chen
authors.forename: Pengpeng
authors.initials: P
authors.lastname: Yue
authors.forename: Liansheng
authors.initials: L
authors.lastname: Guo
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Zhao
mesh_terms: D000293:Adolescent; D000328:Adult; D044466:Asian People; D001302:Audiometry, Speech; D006801:Humans; D007807:Language Tests; D013063:Speech Discrimination Tests / Q000379:methods*; D013068:Speech Production Measurement / Q000379:methods; D013334:Students; D055815:Young Adult