Accession Number:

ADA951931

Title:

On the Stability of Auditory Threshold,

Descriptive Note:

Corporate Author:

NATIONAL PHYSICAL LAB TEDDINGTON (ENGLAND)

Personal Author(s):

Report Date:

1970-07-01

Pagination or Media Count:

31.0

Abstract:

Using audiometrically-experienced well-motivated subjects it is shown that the total replication variance for threshold tests repeated within a period of 27 months is of order 3 sq db at 1 kHz, rising to 15 sq db at 80 Hz and to 30 sq db at 12 kHz in this respect little differences was observed between manual and self-recording techniques. The component of this due to true long-term changes is of order 1-2 sq db. Even with experienced subjects the mean hearing level on any given day improved by about 1 dB on second and subsequent tests, whilst inexperienced subjects showed additional improvements due to familiarisation varying from 1 to 9 dB.

Subject Categories:

  • Psychology
  • Anatomy and Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE