Skip to main content
. Author manuscript; available in PMC: 2021 Mar 1.
Published in final edited form as: Ear Hear. 2020 Mar-Apr;41(2):239–253. doi: 10.1097/AUD.0000000000000536

Figure 2. Test-retest variability is greater in children than previously reported for adults.

Figure 2.

The DPOAE level shift relative to baseline is given in dB as a function of test-retest interval for participants grouped by age (columns) at a range of f2 frequencies (rows). Within a panel, thin black lines represent the DPOAE level shift in each ear and the thick red line is a loess smooth fit to the group data. The vertical distance between the red line and the horizontal line indicating zero change can be used to appreciate the magnitude of mean shift. For comparison, the gray box in each panel at f2~2, 4, and 6 kHz, indicates the 90% shift reference interval obtained in a meta-analysis of published data from adults for which test-retest intervals vary from <1hr to slightly over weeks (Reavis et al., 2015).