title: Test-retest reliability of auditory brainstem responses to chirp stimuli in newborns.
abstract: OBJECTIVE
  The purpose of this study was to examine the test-retest reliability of auditory brainstem responses (ABRs) to air- and bone-conducted chirp stimuli in newborns as a function of intensity.
  
  
  METHODS
  A repeated measures quasi-experimental design was employed.
  
  
  METHODS
  Thirty healthy newborns participated. ABRs were evoked using 60, 45, and 30 dB nHL air-conducted CE-Chirps and 45, 30, and 15 dB nHL bone-conducted CE-Chirps at a rate of 57.7/s. Measures were repeated by a second tester.
  
  
  RESULTS
  Statistically significant correlations (p <.0001) and predictive linear relations (p <.0001) were found between testers for wave V latencies and amplitudes to air- and bone-conducted CE-Chirps. There were also no statistically significant differences between testers with wave V latencies and amplitudes to air- and bone-conducted CE-Chirps (p >.05). As expected, significant differences in wave V latencies and amplitudes were seen as a function of stimulus intensity for air- and bone-conducted CE-Chirps (p <.0001).
  
  
  CONCLUSIONS
  These results suggest that ABRs to air- and bone-conducted CE-Chirps can be reliably repeated in newborns with different testers. The CE-Chirp may be valuable for both screening and diagnostic audiologic assessments of newborns.
authors.affiliation: Department of Communication Sciences and Disorders, East Carolina University , Greenville, NC , USA.
authors.forename: Kensi M
authors.initials: KM
authors.lastname: Cobb
authors.forename: Andrew
authors.initials: A
authors.lastname: Stuart
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods*; D001309:Auditory Threshold / Q000502:physiology; D001844:Bone Conduction / Q000502:physiology; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006320:Hearing Tests; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D015997:Neonatal Screening / Q000379:methods*; D011930:Reaction Time; D015203:Reproducibility of Results
keywords: Auditory brainstem response; chirp; newborn; reliability; test-retest