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 10

L-index balance test.

Variable	Unmatched/matched	Mean		% reduction		t-test
		Treated	Control	% bias		t
Main journal	Unmatched	5.0425	4.9721	1.9		0.86	0.388	0.92
	Matched	5.0469	4.9897	1.5	18.8	0.57	0.565	0.99
Start year	Unmatched	2009.5	2008.8	12.6		5.99	0.000	1.18∗
	Matched	2009.5	2009.5	0.2	98.7	0.06	0.954	1.00
Career length	Unmatched	2.7577	1.703	35.4		19.50	0.000	3.04
	Matched	2.7376	2.7461	−0.3	99.2	−0.09	0.931	0.99