Fig. 6

A graph showing the ego network of student S5 on the left (a) and S33 on the right (b). To the left, graph (a) shows the ego network of student S5 with a larger network of 11 neighbors and consequently more influence, compared to the small ego network of S33 on the right (b). Each node (circle) corresponds to a participant, each edge (arrow) corresponds to an interaction, the arrowheads represent the direction of the interaction, the size of each node is relative to its degree centrality, color intensity represents betweenness centrality, and the thickness of edges represents the frequency of interactions