Table 1. Distribution of Spearman r_s values for 108 cases /%.

Groups	rs≥0.7	0.4≤rs<0.7	0≤rs<0.4	rs<0
SC	28.97	68.83	2.19	0.00
LX	2.47	76.17	21.14	0.21
PH	3.32	82.01	14.66	0.00
SC+LX	10.81	82.00	7.19	0.00
SC+PH	10.57	80.14	9.29	0.00
SC+LX+PH	9.89	86.36	3.75	0.00
Average	10.92	79.30	9.77	0.04

LX, lateral cephalometric X-ray image; PH, facial photograph; SC, study cast.