title: Monitoring progress in vocal development in young cochlear implant recipients: relationships between speech samples and scores from the Conditioned Assessment of Speech Production (CASP).
abstract: OBJECTIVE
  To determine the concurrent validity of the Conditioned Assessment of Speech Production (CASP; Ertmer & Stoel-Gammon, 2008) and data obtained from speech samples recorded at the same intervals.
  
  
  METHODS
  Nineteen children who are deaf who received cochlear implants before their 3rd birthdays participated in the study. Speech samples and CASP scores were gathered at 6, 12, 18, and 24 months postactivation. Correlation analyses were conducted to assess the concurrent validity of CASP scores and data from samples.
  
  
  RESULTS
  CASP scores showed strong concurrent validity with scores from speech samples gathered across all recording sessions (6-24 months).
  
  
  CONCLUSIONS
  The CASP was found to be a valid, reliable, and time-efficient tool for assessing progress in vocal development during young cochlear implant recipients' first 2 years of device experience.
authors.affiliation: Purdue University, West Lafayette, IN, USA. dertmer@purdue.edu
authors.forename: David J
authors.initials: DJ
authors.lastname: Ertmer
authors.forename: Jongmin
authors.initials: J
authors.lastname: Jung
mesh_terms: D002675:Child, Preschool; D019929:Cochlear Implantation / Q000534:rehabilitation*; D012048:Correction of Hearing Impairment / Q000379:methods* / Q000592:standards*; D003638:Deafness / Q000534:rehabilitation*; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D010700:Phonetics; D015203:Reproducibility of Results; D013060:Speech; D013068:Speech Production Measurement / Q000379:methods* / Q000592:standards*; D014831:Voice