Table 2.

Inter-observer and intra-observer reliability

Cronbach’s alpha	Robotic (n = 50)	Conventional (n = 50)	Both (n = 100)
Inter-observer coefficient
Inclination	0.97	0.93	0.98
Anteversion	0.92	0.91	0.92
Intra-observer coefficient
Inclination	0.89	0.81	0.84
Anteversion	0.82	0.80	0.81