Table 2. Click-evoked ABR interpeak latencies measured 20 dB above each animal’s threshold.

Interpeak	Mother	Cocarer	Naive	df	F	p
I–II	0.670±0.022	0.711±0.019	0.776±0.039	2,18	3.674	0.046
II–III	0.558±0.053	0.447±0.017	0.388±0.038	2,18	4.984	0.019
III–IV	0.594±0.090	0.417±0.026	0.576±0.034	2,18	2.870	0.083
IV–V	0.658±0.070a	0.805±0.025ab	0.893±0.041b	2,18	5.916	0.011*

Click ABR interpeak latencies (mean ± sem) at 20 dB above click threshold.

*Significant at the Sidak adjusted alpha level for multiple post-hoc ANOVA comparisons after a significant MANOVA: p = 0.013.

^abvalues sharing a common letter are not significantly different in a post-hoc analysis. All values are in milliseconds.