What makes an online problem-based group successful? A learning analytics study using social network analysis

BMC Medical Education

Table 2 Correlation between performance measures and SNA parameters of the group networks

Group variables	Grade		Difference in grade		Fraction of improved students
Group variables	r	p	r	p	r	p
Number of students	−0.296	0.022	− 0.215	0.1	0.183	0.163
Edge count	0.506	< 0.001	0.478	< 0.001	0.557	< 0.001
Mean distance	−0.617	< 0.001	− 0.516	< 0.001	− 0.277	0.032
Centralization indegree	−0.267	0.04	−0.197	0.131	−0.068	0.604
Centralization outdegree	−0.681	< 0.001	−0.642	< 0.001	− 0.548	< 0.001
Centralization Betweenness	−0.56	< 0.001	− 0.489	< 0.001	−0.341	0.008
Centralization Closeness	−0.548	< 0.001	−0.537	< 0.001	− 0.437	< 0.001
Transitivity	0.665	< 0.001	0.576	< 0.001	0.511	< 0.001
Reciprocity	0.628	< 0.001	0.579	< 0.001	0.463	< 0.001

ISSN: 1472-6920