title: Accuracy of hearing aid use time as reported by experienced hearing aid wearers.
abstract: OBJECTIVE
  The purpose of this study was to investigate the relationship between the amount of time that a person reports wearing his or her hearing aid and the actual time that the hearing aid is worn. Although use time data are used in the analysis and interpretation of investigations concerned with auditory perceptual learning and with user satisfaction, the accuracy of self-reported use time has not been fully investigated.
  
  
  METHODS
  The experimental and control group were fit with a hearing aid that has the capability of storing use time data for later analysis. The experimental group was told that the self-reported use time would be verified with a computer analysis of the hearing aid that provides the actual use time. The control group was not informed of the use time validation procedure. The agreement between self-reported and actual use time was compared statistically between groups (knowledge of validation versus no knowledge of validation).
  
  
  RESULTS
  The experimental group provided accurate self-reported use time whereas the control group showed a significant difference between actual use time and self-reported use time.
  
  
  CONCLUSIONS
  The results may assist in the interpretation of results of previous investigations that have depended on self-reported use time and in the design of future investigations. For the clinician, the results indicate that relying on a patient's self-reported hearing aid use time for documentation of satisfaction or signal processing preference may be misleading.
authors.affiliation: University of Pittsburgh, Pennsylvania 15260, USA.
authors.forename: L B
authors.initials: LB
authors.lastname: Taubman
authors.forename: C V
authors.initials: CV
authors.lastname: Palmer
authors.forename: J D
authors.initials: JD
authors.lastname: Durrant
authors.forename: S
authors.initials: S
authors.lastname: Pratt
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006310:Hearing Aids / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013063:Speech Discrimination Tests; D013997:Time Factors