. Author manuscript; available in PMC: 2015 Apr 1.

Published in final edited form as: Horm Behav. 2014 Mar 1;65(4):329–339. doi: 10.1016/j.yhbeh.2014.02.010

Table 2.

Regression Results

Results of backwards stepwise multiple regression analyses show contributions of ARir to variance in song bout length

Dependent Variable	Independent Variables	β	S.E.	t	p value
Average song bout length
adj. R²= .34 p=.046	ARir in POM	0.0002	0.0001	2.35	0.046
n=10	T concentrations	excluded from model	n/a	n/a	n/a
	Gonad volume	excluded from model	n/a	n/a	n/a
adj. R²= .40 p=.021	ARir in HVC	0.00003	0.00001	2.79	0.021
n=11	T concentrations	excluded from model	n/a	n/a	n/a
	Gonad volume	excluded from model	n/a	n/a	n/a
adj. R²= .60 p=.003	ARir in DM	0.00060	0.0002	4.04	0.003
n=11	T concentrations	excluded from model	n/a	n/a	n/a
	Gonad volume	excluded from model	n/a	n/a	n/a