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 6

Unary linear regression results of average citations per paper and L-index.

Average citations per paper	Coeff.	Robust std. error	t-value	-value	95% confidence interval		Sig
L-index	0.926	0.216	4.29	≤0.001	0.503	1.35
Main journal	−0.288	0.093	−3.11	0.002	−0.47	−0.107
Start year	−1.635	0.047	−34.70	≤0.001	−1.728	−1.543
Career length	−0.584	0.095	−6.16	≤0.001	−0.769	−0.398
Constant	3,309.679	94.786	34.92	≤0.001	3,123.884	3,495.475
Mean dependent var		23.848	SD dependent var			37.333
R-squared		0.056	Number of obs			12,875
F-test		358.430	Prob > F			≤0.001
Akaike crit. (AIC)		129,011.476	Bayesian crit. (BIC)			129,048.791

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