Table 2.

Comparisons of non-preferred (n = 27) and preferred (n = 31) partners (dependent variable), with a binary generalized linear mixed model, are presented below to compare various measures of behavior, measured as a pair (symmetry, proximity, and dominance), as well as the difference in weight between pairs of rats (predictor variables)

Fixed effect	Not Preferred	Preferred	Estimate	SE	z	p	OR	CI Lower	CI Upper
Intercept			1.774	1.493	1.188	0.235	5.892	−1.152	4.700
Play symmetry	0.51 ±0.06	0.75 ±0.05	−2.911	1.058	−2.750	0.006	0.054	−4.986	−0.837
Proximity (sec)	292.65 ± 11.86	281.77 ± 10.46	−0.001	0.005	0.170	0.865	1.001	−0.009	0.011
Weight	−3.31 ± 3.57	−2.64 ± 3.35	−0.005	0.016	−0.296	0.767	0.995	−0.036	0.027
Dominance	1.92 ± 2.28	0.88 ± 1.51	−0.024	0.029	−0.820	0.412	0.976	−0.082	0.033

SE, standard error; OR, odds ratio; CI, confidence interval.

The percentage (± standard error of the mean) of the various measures are presented along with the results of the model.