title: Test-Retest Reliability of Word Recognition Score Using Korean Standard Monosyllabic Word Lists for Adults as a Function of the Number of Test Words.
abstract: OBJECTIVE
  The purpose was to establish the test-retest reliability of word recognition score (WRS) using Korean standard monosyllabic word lists for adults (KS-MWL-A) recently developed based on the international standard for speech audiometry (ISO 8253-3:2012).
  
  
  METHODS
  Subjects consisted of 159 adults aged to 18 to 25 years with normal hearing sensitivity. WRSs were obtained in 2 dB steps from the level of speech recognition thresholds to the level of 86% correct responses or greater. After one or two weeks, retest was performed. Correlation, confidence interval (CI) and prediction interval (PI) were calculated for the reliability.
  
  
  RESULTS
  Correlation coefficients were 0.88 for 50 test words, 0.76 for 25 and 0.61 for 10 words. Results also showed that 95% CIs and PIs were narrower for 25 and 50 test words than those for 10 test words.
  
  
  CONCLUSIONS
  Korean WRS using the KS-MWL-A has high reliability for 25 and 50 test words, but relatively low for 10 words. It suggested that 95% CIs for each test words would be criteria for significant differences in WRS for groups and 95% PIs at each score of WRS could be utilized for a considerable difference for each individual at retest.
authors.affiliation: Division of Speech Pathology and Audiology, Hallym University, Chuncheon, Korea.
authors.forename: Jinsook
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Audiology, Hallym University of Graduate Studies, Seoul, Korea. ; Institute of Audiology, Hallym University of Graduate Studies, Seoul, Korea.
authors.forename: Junghak
authors.initials: J
authors.lastname: Lee
authors.affiliation: Department of Audiology, Hallym University of Graduate Studies, Seoul, Korea.
authors.forename: Kyoung Won
authors.initials: KW
authors.lastname: Lee
authors.affiliation: Department of Audiology, Hallym University of Graduate Studies, Seoul, Korea.
authors.forename: Junghwa
authors.initials: J
authors.lastname: Bahng
authors.affiliation: Department of Audiology, Hallym University of Graduate Studies, Seoul, Korea.
authors.forename: Jae Hee
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Audiology and Speech-Language Pathology, Catholic University of Daegu, Gyeongsan, Korea.
authors.forename: Chul-Hee
authors.initials: CH
authors.lastname: Choi
authors.affiliation: Department of Speech-Language Pathology and Audiology, Nambu University, Gwangju, Korea.
authors.forename: Soo Jin
authors.initials: SJ
authors.lastname: Cho
authors.affiliation: Department of Speech-Language Pathology and Audiology, Sehan University, Mokpo, Korea.
authors.forename: Eun Yeong
authors.initials: EY
authors.lastname: Shin
authors.affiliation: Institute of Audiology, Hallym University of Graduate Studies, Seoul, Korea.
authors.forename: Jeonghye
authors.initials: J
authors.lastname: Park
keywords: Confidence interval (CI); Korean standard monosyllabic word list for adults (KS-MWL-A); Prediction interval (PI); Test-retest reliability; Word recognition score (WRS)