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 2

Unary linear regression results of the number of papers and degree centrality.

The number of papers	Coeff.	Robust std. error	t-value	-value	95% confidence interval		Sig
Degree	0.347	0.038	9.17	≤0.001	0.273	0.421
Main journal	−0.005	0.002	−2.23	0.026	−0.009	−0.001
Start year	−0.015	0.002	−7.59	≤0.001	−0.019	−0.011
Career length	0.244	0.017	14.08	≤0.001	0.21	0.278
Constant	30.71	3.971	7.73	≤0.001	22.927	38.493
Mean dependent var		1.541	SD dependent var			1.778
R-squared		0.675	Number of obs			12,875
F-test		441.958	Prob > F			≤0.001
Akaike crit. (AIC)		36,873.095	Bayesian crit. (BIC)			36,910.410

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