highly significantp = 6.3140e-06
All correlation coefficients were highly significant (for the natural to unnatural ranking: R = 0.99, p = 6.3140e-06 for M1 and R = 0.98, p = 6.5508e-06 for M2; for the unnatural to natural ranking: R = 0.97, p = 6.5606e-06 for M1 and R = 0.97, p = 6.5677e-06 for M2).