Table A2.

The Accuracy and stereoscopic depth constancy analyses independent of condition order.

	Estimate	DF	t	p	R
Accuracy relative to theoretical
PTE
Near viewing distance
Intercept	−0.33	15	−0.46	0.65	0.12
Slope	−0.09	94	−0.63	0.53	0.06
Far viewing distance
Intercept	−0.38	15	−0.60	0.56	0.15
Slope	−0.20	94	−1.53	0.13	0.16
Stereoscope
Near viewing distance
Intercept	0.69	15	1.81	0.09	0.42
Slope	−0.20	126	−2.06	0.04	0.18
Far viewing distance
Intercept	0.55	15	1.60	0.13	0.38
Slope	−0.36	126	−4.70	<0.0001	0.39
HMD
Near viewing distance
Intercept	1.41	15	2.61	0.02	0.56
Slope	−0.29	126	−2.68	0.01	0.23
Far viewing distance
Intercept	1.28	15	2.98	0.01	0.61
Slope	−0.44	126	−4.64	<0.0001	0.38
Stereoscopic depth constancy
Viewing distance × apparatus: PTE
Intercept	−0.05	15	−0.20	0.84	0.05
Slope	−0.10	94	−2.18	0.03	0.19
Viewing distance × apparatus: stereoscope
Intercept	−0.14	15	−0.89	0.39	0.22
Slope	−0.16	126	−4.26	<0.0001	0.35
Viewing distance × apparatus: HMD
Intercept	−0.14	15	−0.80	0.44	0.20
Slope	−0.15	126	−5.79	<0.0001	0.46

Notes: The accuracy relative to theoretical analysis is comparing the intercept and slope of depth estimates in each apparatus and viewing distance relative to a theoretical observer with perfect accuracy. The stereoscopic depth constancy analysis is comparing the relative intercepts and slopes for the two viewing distances for each apparatus.