Table 2.

Basic looking characteristics for each age group

	N	Average number of trials with usable data	Average number of fixations per trial	Average total looking duration per trial
Experiment 1: Infants
5–7 months	53	38.40 (14.88)	6.82 (1.50)	2,831.23 ms (555.03)
10–12 months	54	38.46 (13.60)	7.79 (1.55)	3,234.45 ms (662.60)
Experiment 2: Toddlers
13–15 months	38	24.68 (13.96)	10.82 (2.29)	3,389.59 ms (1,102.11)
19–21 months	41	27.17 (15.02)	11.57 (1.87)	3,510.15 ms (882.42)

Note. Maximum usable trials was 50 for Experiment 1 (infants) and 51 for Experiment 2 (toddlers). Maximum total looking duration was 5,000 ms for Experiment 1 (infants) and 6,000 ms for Experiment 2 (toddlers)