Sex differences in song syntax and syllable diversity in testosterone-induced songs of adult male and female canaries

Table 1 Results of the two-way ANOVAs comparing multiple song metrics in males and females treated for 6 weeks with T or T+E2

Variable	Trt			Sex			Int
Variable	F_df	P	η_p²	F_df	P	η_p²	F_df	P	η_p²
Syllable-type repertoire	F_1,24 = 2.51	0.155	0.082	F_1,24 = 50.53	0.0001***	0.678	F_1,24 = 0.226	0.882	0.001
Song-type repertoire	F_1,24 = 0.306	0.585	0.013	F_1,24 = 18.62	0.0002***	0.437	F_1,24 = 1.341	0.258	0.053
Syllable types/song	F_1,24 = 0.452	0.508	0.018	F_1,24 = 26.20	0.0001***	0.522	F_1,24 = 0.008	0.928	< 0.001
Syllables/song	F_1,24 = 0.199	0.659	0.008	F_1,24 = 0.526	0.4754	0.021	F_1,24 = 1.782	0.194	0.069
Syllable types/s	F_1,24 = 0.091	0.766	0.004	F_1,24 = 18.66	0.0002***	0.437	F_1,24 = 2.420	0.133	0.092
Syllables/s	F_1,24 = 0.091	0.766	0.004	F_1,24 = 1.127	0.2989	0.045	F_1,24 = 0.021	0.886	0.001
SVI	F_1,24 = 1.085	0.308	0.043	F_1,24 = 5.532	0.0272*	0.187	F_1,24 = 2.076	0.162	0.080
Levenshtein distance	F_1,24 = 0.250	0.622	0.010	F_1,24 = 5.362	0.0294*	0.183	F_1,24 = 0.968	0.335	0.039
Network path	F_1,22 = 0.465	0.502	0.021	F_1,22 = 20.07	0.0002***	0.477	F_1,22 = 0.520	0.478	0.023
Network density	F_1,22 = 0.557	0.463	0.025	F_1,22 = 21.90	0.0001***	0.499	F_1,22 = 0.281	0.602	0.013

The data reports the F ratio, degrees of freedom and associated probabilities for the 2 main factors (treatment, i.e., T vs. T+E2 and sex) as well as their interaction. The effect size (partial eta square η_p²) is also indicated in each case. Usual interpretations of effect sizes are: 0.01 = small, 0.06 = medium and 0.14 = large effect
* Significant probabilities (p < 0.05)

ISSN: 2042-6410