Table 2.

Means and standard deviations of parent number talk instances, by child age and type of number talk (N=44).

	Child Age (Months)
	14	18	22	26	30	Total
Counting with present objects, small sets (1–3)	0.58 (1.05)	0.67 (1.29)	0.71 (1.53)	1.21 (3.38)	1.18 (2.80)	4.34 (5.75)
Counting with present objects, large sets (4–10)	0.40 (1.11)	0.35 (0.84)	0.30 (1.14)	0.93 (2.78)	0.66 (1.45)	2.64 (3.46)
Counting without present objects, small sets (1–3)	0.45 (1.02)	1.15 (2.59)	1.23 (2.43)	0.55 (1.46)	0.46 (0.98)	3.83 (5.28)
Counting without present objects, large sets (4–10)	0.12 (0.40)	0.28 (0.64)	0.36 (0.95)	0.30 (0.60)	0.43 (0.93)	1.49 (1.59)
Cardinal values with present objects, small sets (1–3)	3.89 (3.49)	5.37 (5.80)	4.43 (5.31)	5.80 (5.56)	6.41 (7.40)	25.89 (19.76)
Cardinal values with present objects, large sets (4–10)	0.66 (1.73)	0.92 (2.35)	0.76 (2.45)	0.68 (1.24)	1.00 (2.47)	4.04 (6.05)
Cardinal values without present objects, small sets (1–3)	0.67 (1.13)	1.01 (1.39)	1.76 (2.00)	1.25 (1.84)	1.73 (2.03)	6.42 (5.19)
Cardinal values without present objects, large sets (4–10)	0.02 (0.16)	0.02 (0.15)	0.07 (0.34)	0.18 (0.66)	0.22 (0.53)	0.51 (1.06)
All other	2.33 (5.77)	2.10 (3.67)	2.19 (2.90)	4.84 (10.27)	5.13 (8.83)	16.60 (18.14)
Total	9.12 (9.76)	11.87 (10.43)	11.81 (11.36)	15.75 (19.82)	17.22 (17.61)	65.76 (44.31)