Table 2.

Centrality measures per variable.

Variable	Network
	Betweenness	Closeness	Strength	Expected influence
TSK1	− 0.917	− 2.104	− 1.565	− 1.605
TSK2	− 0.051	− 0.472	0.413	0.336
TSK3	− 0.267	− 0.662	0.683	1.392
TSK4	2.113	1.309	0.497	− 0.988
TSK5	− 0.267	− 1.064	− 1.448	− 0.743
TSK6	− 0.267	− 0.294	− 0.341	− 0.525
TSK7	− 0.592	− 0.958	− 0.695	0.569
TSK8	− 0.917	− 0.724	− 0.634	− 0.168
TSK9	0.166	− 0.182	− 0.201	0.870
TSK10	0.598	0.323	0.379	0.745
TSK11	− 0.592	− 0.273	− 0.233	1.213
TSK12	2.655	1.750	2.472	0.234
TSK13	0.057	0.641	0.176	0.131
TSK14	− 0.484	0.933	0.122	0.307
TSK15	− 0.592	0.939	1.180	0.910
TSK16	0.274	1.031	0.450	− 0.375
TSK17	− 0.917	− 0.191	− 1.256	− 2.302