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 5

Unary linear regression results of the number of papers and L-index.

The number of papers	Coeff.	Robust std. error	t-value	-value	95% confidence interval		Sig
L-index	0.153	0.019	7.96	≤0.001	0.115	0.191
Main journal	−0.01	0.003	−3.62	≤0.001	−0.015	−0.004
Start year	−0.005	0.001	−3.98	≤0.001	−0.008	−0.003
Career length	0.442	0.02	22.26	≤0.001	0.403	0.481
Constant	11.229	2.71	4.14	≤0.001	5.918	16.54
Mean dependent var		1.541	SD dependent var			1.778
R-squared		0.461	Number of obs			12,875
F-test		152.352	Prob > F			≤0.001
Akaike crit. (AIC)		43,397.556	Bayesian crit. (BIC)			43,434.871

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