Table 6.

Estimated effect size, adjusted standard error (SE), z-value and relative variable importance (RVI) estimated by a generalized linear mixed model to determine the effects of session and species on the likelihood of following the human partner to the first tray in the dual tray condition.

	Effect Size	Adj. SE	z value	P	RVI
Session	0.33	0.162	2.041	0.041	0.75
Species	0.068	0.27	0.250	0.802	0.27