highly significantP < 0.001
This bias was highly significant (Rayleigh's test; Z = 6.59, df = 1, P < 0.001; Rao's test; U = 188.38, df = 1, P < 0.001).
This bias was highly significant (Rayleigh's test; Z = 6.59, df = 1, P < 0.001; Rao's test; U = 188.38, df = 1, P < 0.001).