Type 1 error rates using pathways with dropped nodes.

Error rates were calculated from score tests on 1000 simulated data sets using graphs 15, 30, or 45 nodes initially. The graph used to simulate Z and Y contained all nodes. Nodes with degree below the 25th percentile within a graph had a 25% chance of being dropped before testing. “Perfect” indicates calculating from the graph without changing edges between remaining nodes. “Mismatch” indicates the percentage of direct edges between remaining nodes that were incorrect. “Complete Mismatch” indicates 100% mismatch.