Skip to main content
. 2008 Oct;124(4):2106–2122. doi: 10.1121/1.2967864

Figure 8.

Figure 8

Group mean one-third-octave ambient energy reflectance ER as a function of frequency for all ages for the present study (N=20 for each group) and for infants and a group of adults from Keefe et al. (1993). The numbers of subjects for each age group in Keefe et al. (1993) are as follows: 1 month=15, 3 months=18, 6 months=11, and adults=10. The bottom panel also includes young adult ER data (N=40, 75 ears) from Feeney et al. (2003). Error bars indicate ±1 SD from the mean. Note that to avoid overlapping error bars in the lower panel, adult SD data are plotted for alternating frequencies for the present study and Feeney et al. (2003).