Fourteen-Month-Olds Adapt Their Imitative Behavior in Light of a Model’s Constraints

Table 4

Infants’ mean imitation rates.

Analyzed response period	Analyzed section of response period	Condition
		Hands-free; M (SD)	Hands-occupied; M (SD)
1st administered block of trials overall (% of trials, between-subjects)	20 seconds	21.05 (36.08)	3.75 (17.5)
	Entire period	25.0 (41.51)	6.25 (23.17)
1st administered trial (% of subjects, between-subjects)	20 seconds	18.92 (39.71)	2.63 (16.22)
	Entire period	21.62 (41.73)	5.26 (22.53)
2nd administered trial (% of subjects, between-subjects)	20 seconds	26.67 (44.98)	5.71 (23.55)
	Entire period	33.33 (47.95)	8.57 (28.4)
1st trial head-touch task, light condition, as the 1st task (% of subjects, between-subjects)	20 seconds	44.44 (52.7)	0.0 (0.0)
	Entire period	44.44 (52.7)	0.0 (0.0)
Head-touch task (both trials), light condition, as the 1st task (% of trials, between-subjects)	20 seconds	44.44 (46.4)	0.0 (0.0)
	Entire period	50.0 (50.0)	3.57 (13.36)
1st administered block of trials, light condition (% of trials, within-subjects)	20 seconds	20.45 (36.28)	4.65 (18.3)
	Entire period	27.27 (42.39)	8.14 (26.57)