title: Development of a mandarin monosyllable test material with homogenous items (II): lists equivalence evaluation.
abstract: CONCLUSIONS
  A set of Chinese Mandarin monosyllable test lists with good reliability and sensitivity was established.
  
  
  OBJECTIVE
  The primary purpose of this study was to evaluate the equivalence of a group of monosyllable lists.
  
  
  METHODS
  A genetic algorithm was adopted to reorganize the material based on the Phoneme Allocation Table; 10 lists with 25 monosyllabic test items in each were generated. A two-factor design was used for the equivalence evaluation test. A total of 80 normal-hearing and native Mandarin-speaking university students (40 males and 40 females) participated in the trial. Every subject was tested with all 10 lists in sequence at 5 presentation levels (-5, 0, 5, 10, and 15 dB HL). Performance-intensity (P-I) function of each list was fit before P-I curve slope and recognition threshold were calculated.
  
  
  RESULTS
  Equivalence evaluation results indicated good psychophysical equivalence between the 10 lists except for list 2. List 9 has a reused item. After the elimination of lists 2 and 9, multivariate ANOVA revealed a good equivalence between the remaining eight lists (p = 0.136). The mean threshold of eight equivalent lists was 10.32 ± 0.38 dB HL, while the mean slope was 5.00 ± 0.29%/dB.
authors: Department of Otolaryngology/Head and Neck Surgery, Chinese PLA Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China.
authors: Fei
authors: F
authors: Ji
authors: Xin
authors: X
authors: Xi
authors: Ai-ting
authors: AT
authors: Chen
authors: Wu-lan
authors: WL
authors: Zhao
authors: Xiao
authors: X
authors: Zhang
authors: Yan-fei
authors: YF
authors: Ni
authors: Shi-Ming
authors: SM
authors: Yang
authors: Qiuju
authors: Q
authors: Wang