title: Phone positioning influence in high-frequency audiometry.
abstract: Research considers high frequency tonal audiometry as a tool for the early diagnosis of auditory alterations derived from etiological agents.
  
  
  OBJECTIVE
  to investigate possible differences in high frequency audiometry of individuals with normal hearing, based on the person who places the earphone.
  
  
  METHODS
  clinical and experimental study with 55 undergraduate students from a country side branch of the São Paulo State University, with normal hearing, underwent two tests each; for the first, the evaluator positioned the earphone on the participant; for the second one, the participant did it by him/herself. An AC40 audiometer calibrated to emit pure tone was used in the frequencies of 10, 12.5, and 16 kHz.
  
  
  RESULTS
  The kappa(k) coefficient statistical analysis was used to verify the agreement between the two ways of earphone positioning of earphone, bearing a [FORMULA: SEE TEXT]0.70 kappa value as a criterion. Results attained for both ears were below this criterion, with k average of 0.50.
  
  
  CONCLUSIONS
  results indicate a risk of compromising the exam reliability when the patient him/herself adjusts phone to his/her own ear.
  
  
  CONCLUSIONS
  when performing audiometric assessment, this variable must be considered in order to attain reliable results.
authors.affiliation: Federal Council of Speech and Hearing Therapy, SP, Brazil. nelson_almeida@uol.com.br
authors.forename: Elizabeth Oliveira
authors.initials: EO
authors.lastname: Crepaldi de Almeida
authors.forename: Aparecida Yumi
authors.initials: AY
authors.lastname: Nishimori
mesh_terms: D000293:Adolescent; D000328:Adult; D001301:Audiometry, Pure-Tone / Q000295:instrumentation*; D001309:Auditory Threshold / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D015203:Reproducibility of Results