Table 1.

Analysis of variance (ANOVA) for Experiment 1 with condition (Physical Size, Number; within-subjects), group size (small, large; within-subjects), and age (3-year-olds, 5-year-olds, and adults; between-subjects) as factors.

Factor	F	p	${\mathrm{\eta }}_{\mathrm{p}}^{\mathrm{2}}$
Condition	1.531	0.219	0.018
Group size	0.148	0.701	0.002
Age	28.396	<0.001	0.401
Condition × Group size	0.691	0.408	0.008
Condition × Age	1.147	0.322	0.026
Group size × Age	0.481	0.620	0.011
Condition × Group size × Age	0.624	0.538	0.014