Table 2. Descriptive statistics and Potential for individual coding.

(DFA) variable included in DFA model. (SE) standard error of the mean. (Krusk–Wallis) Kruskal–Wallis test after Bonferroni correction. (**) p < 0.001. Mean CVw (within individual comparison, n = 22). CVa (between individual comparison, n = 217).

Variable	DFA	Mean	Min	Max	SE	Krusk–Wallis	Mean CVw	CVa	PIC
Frequency 5% (Hz)	X	821.1	280.0	3359.0	29.77	**	27.14	53.41	1.97
Time 5% (ms)		263.3	41.0	687.0	8.93	**	28.87	49.98	1.73
Min Entropy	X	5.9	4.0	8.0	0.06	**	12.05	15.17	1.26
Agg Entropy		8.4	6.0	9.0	0.04	**	5.98	7.80	1.30
Low frequency (Hz)		248.0	158.0	784.0	6.82	**	19.46	40.48	2.08
First quartile frequency (Hz)	X	1920.7	560.0	7795.0	91.13	**	40.01	69.89	1.75
First quartile time (ms)	X	263.6	41.0	687.0	8.93	**	28.83	49.92	1.73
Third quartile frequency (Hz)	X	6452.9	1378.0	9281.0	130.74	**	20.88	29.85	1.43
Third quartile time (ms)		264.1	42.0	687.0	8.93	**	28.76	49.83	1.73
Bandwidth 90% (Hz)	X	8702.4	3295.0	11908.0	76.45	**	9.74	12.94	1.33
Center frequency (Hz)		3900.4	775.0	8549.0	137.37	**	38.18	51.88	1.36
Call duration (samples)	X	64124.0	29892.0	133643.0	1212.51	**	15.87	27.85	1.75
Peak frequency (Hz)		2344.2	302.0	9044.0	164.37	**	65.11	103.29	1.59
Inter-quartile range (Hz)		4532.3	302.0	7235.0	108.98	**	26.88	35.42	1.32
Time 95% (ms)		264.3	42.0	687.0	8.93	**	28.74	49.79	1.73
Frequency 95% (Hz)		9223.4	4005.0	13286.0	83.85	**	9.22	12.97	1.41