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Fig. 1 | Addiction Science & Clinical Practice

Fig. 1

From: Feasibility of a computer-assisted social network motivational interviewing intervention to reduce substance use and increase supportive connections among emerging adults transitioning from homelessness to housing

Fig. 1

Example figures from hypothetical MI-SNI session. Network contacts are represented by circles (graph “nodes”) and lines between nodes represent network contacts who interacted with each other in the past 2 weeks. The layout of the nodes, generated with the Fruchterman–Reingold force-directed placement algorithm highlights structural characteristics of the network, such as isolates (completely disconnected nodes) and components (a set of nodes tied together but disconnected from other nodes). The structural layout is consistent across the three diagrams. The “Connections” figure on the left (a) uses node color, node size, and line thickness to highlight other characteristics of the network structure, including the centrality of network actors (depicted by larger and darker nodes) and stronger relationship ties between actors (highlighted with thicker lines). The other figures use node size and color to highlight network composition. The AOD use figure in the middle highlights drinking and drug use partners with size and color ranging from small green nodes (no AOD use by network member) to large red nodes (participant uses with more than usual). The “Support” figure on the right depicts network members with size and color (large purple = supportive now and in the future, small purple = supportive now only, small orange = not supportive)

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