Table III.

T-test for variation in network properties by participant type (n = 163), Los Angeles, CA, 2009

Network properties	Participant type				t-statistics
	PL and F2F		OY
	Mean	SD	Mean	SD
MySpace network
Degree centrality	4.66	4.97	8.90	6.31	3.83***
Between centrality	68.80	118.90	83.06	165.40	0.52
Eigen centrality	0.04	0.05	0.08	0.06	3.79***
Percent homophily by age	29.87	32.22	40.48	27.87	1.58
Percent homophily by gender	50.03	36.22	52.89	26.46	0.39
Facebook network
Degree centrality	3.11	2.52	3.48	2.62	0.38
Between centrality	39.65	91.65	24.15	44.52	−0.49
Eigen centrality	0.03	0.05	0.12	0.15	2.75**
Percent homophily by age	44.05	30.70	51.11	48.77	0.39
Percent homophily by gender	38.89	23.34	59.42	38.81	1.81

***P < 0.001 and **P < 0.01.