Table A9.

Persistence

Variable	F	df	Coefficient±SE	P
Condition	12.505	3		<0.001
Session number	187.220	1		<0.001
Sex	0.002	1		0.967
Age	13.796	1		<0.001
Condition*Session number	11.174	3		<0.001
Condition*Sex	2.051	3		0.104
Condition*Age	3.166	3		0.023
Condition=Pull			−0.630±0.627	0.315
Condition=Push			0.817±0.485	0.092
Condition=Free Pull			−2.005±0.629	0.001
Condition=Free Push			0†
Session number			0.086±0.009	<0.001
Age=Juvenile			−0.093±0.791	0.907
Age=Adult			0†
Condition=Pull*Session number			−0.062±0.011	<0.001
Condition=Push*Session number			−0.044±0.011	<0.001
Condition=Free Pull*Session number			−0.047±0.011	<0.001
Condition=Free Push*Session number			0†
Condition=Pull*Age=Juvenile			2.716±0.935	0.004
Condition=Pull*Age=Adult			0†
Condition=Push*Age=Juvenile			1.110±0.974	0.254
Condition=Push*Age=Adult			0†
Condition=Free Pull*Age=Juvenile			1.566±1.034	0.130
Condition=Free Pull*Age=Adult			0†
Condition=Free Push*Age=Juvenile			0†
Condition=Free Push*Age=Adult			0†

Best-fitting model assessed with a binomial generalized linear mixed model (GLMM) with a logit link function. Group and Individual identity were entered as random factors. Test statistics (significant results in bold) and coefficients ± SE of significant results are also shown. Reference category: pull.

^†This parameter is set to zero because it is redundant.