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Table 2 Correlation between centrality measures and students’ performance

From: How the study of online collaborative learning can guide teachers and predict students’ performance in a medical course

Parameter MCQs Clinical exam Final
Quantity of participation τb p τb p τb p
 In-degree 0.15 0.24 0.17 0.16 0.32** 0.01
 Out-degree 0.16 0.18 0.10 0.40 0.16 0.17
 Degree 0.18 0.13 0.12 0.34 0.23 0.05
Information relay
 Betweenness centrality 0.28* 0.02 0.46** 0.00 0.46** 0.00
 Closeness centrality 0.11 0.35 0.20 0.1 0.27* 0.03
 Information centrality 0.17 0.14 0.23 0.06 0.36** 0.00
Connectedness
 Eigenvector centrality 0.37** 0.00 0.38** 0.00 0.45** 0.00
 Eccentricity −0.10 0.49 −0.23 0.11 −0.29* 0.04
 Clustering 0.12 0.33 0.05 0.7 0.23 0.06
Previous course 0.52** 0.00 0.35** 0.01 0.53 0.00
  1. *Significant at the level of 0.05, **Significant at the level of 0.01