The Influence of Author Degree Centrality and L-Index on Scientific Performance of Physical Education and Training Papers in China Based on the Perspective of Social Network Analysis

Table 8

Propensity score matching results.

Dependent variable	Scientific performance	Treatment group	Control group	ATT	Standard error	T-value
Degree centrality	The number of papers	2.360	1.707	0.652	0.048	13.35
L-index		2.185	1.742	0.442	0.063	6.96
Degree centrality	Average citations per article	25.061	22.344	2.717	1.130	2.40
L-index		—	—	—	—	—
Degree centrality	H-index	2.044	1.577	0.467	0.034	13.62
L-index		1.850	1.553	0.297	0.040	7.39