Table 3. Results of DFA investigating individual distinctiveness.

	Call level		Bout level
	Balanced	Unbalanced	Balanced	Unbalanced
Number of individuals	4	23	8	13
Sample size (screams/bout)	82	296	61	85
Expected calls correctly classified (%)	50.7	34.4	36.1	26.5
Observed calls correctly classified (%)	66.3	50.3	44.1	39.3
P	0.02	< 0.001	0.1	0.006
Expected calls correctly cross-classified (%)	24.9	4.4	12.5	7.4
Observed calls correctly cross-classified (%)	47.2	12.9	13.7	12.2
P cross-validation	0.002	< 0.001	0.503	0.088