. Author manuscript; available in PMC: 2021 Dec 14.

Published in final edited form as: J Res Adolesc. 2019 Dec 23;30(2):521–540. doi: 10.1111/jora.12541

TABLE 1.

Mean Text Messages Exchanged During 4 days with Parents, Peers, and Romantic Partners Across High School

	Frequency of Texts				Percentage of Texts
	Grade 9	Grade 10	Grade 11	Grade 12	Grade 9	Grade 10	Grade 11	Grade 12
Parents	6.78^a (12.85)	23.96^c (27.42)	19.35^e (19.52)	27.46^g (27.73)	3.16% (9.41%)	5.01% (7.65%)	4.68% (7.06%)	6.45% (8.65%)
N	172	180	178	180
Peers	234.96^b (224.82)	400.23^d (323.94)	359.7^f (345.47)	325.13^h (240.32)	69.45% (30.39%)	62.19% (29.07%)	61.58% (27.83%)	60.05% (25.12%)
N	172	180	178	180
Romantic partners	267.68^b (283.32)	435.43^d (517.03)	376.66^f (444.04)	295.36^h (295.64)	47.04% (26.33%)	42.64% (26.75%)	42.42% (26.24%)	37.7% (23.97%)
N	76	102	109	118
Total	378.19 (354.88)	708.73 (623.09)	651.78 (620.37)	590.27 (403)	-	-	-	-
N	172	180	178	180

Note. SDs presented in parentheses. Different superscript letters indicate significant difference in texts exchanged between communication partners (within the same year).