highly significantP = 0.001
All predictors had a highly significant effect ( P = 0.001).
All predictors had a highly significant effect ( P = 0.001).
The correlation coefficient between ξ1 and ξ2 was weak but significant ( r = 0.47, P = 0.05) for the normalized measures and marginally significant ( r = 0.45, P = 0.059) for the original ones.