Table 3 Fixed effects estimates and p-values for the random effects for training patterns identified by clustering at OP and TP. Variable Fixed effect Parameter (se) p-value Random-effect variance p-value Patterns in OP Intercept .012 (.004) .011 .042 Global effect of patterns .033 cluster 1 .004 (.004) .404 cluster 2 .012 (.004) .006 cluster 3 .006 (.006) .341 cluster 4 reference Patterns in TP Intercept .016 (.004) .011 .105 Global effect of patterns .026 cluster 1 .002 (.009) .874 cluster 2 -.012 (.006) .047 cluster 3 -.015 (.005) .007 cluster 4 reference