. Author manuscript; available in PMC: 2019 Dec 5.

Published in final edited form as: Child Dev. 2017 Feb 10;88(6):2060–2078. doi: 10.1111/cdev.12730

Table 3.

Percentage Total Play time in which Hand was in Contact with an Object for Low and High Joint Attention (JA) Dyads, SD in parentheses.

	overall	correlation with age	Low JA	High JA	low-high comparison

infant	29.73 (16.45)	0.31^* p=0.02	24.07 (13.72)	35.62 (17.24)	t(49)=2.65 p<.01, d=0.75
parent	26.17 (15.38)	−0.12 p=0.16	29.31 (16.14)	22.91 (14.13)	t(49) =1.50, n.s.
both	35.96 (16.91)	−0.22 p=0.12	38.15 (18.68)	33.7 (14.90)	t(49) = 0.94, n.s.
neither	8.13 (6.56)	0.23 p=0.10	8.48 (7.74)	7.76 (5.19)	t(49) = 0.04, n.s.

p<0.05