Table 2 .

Means (and standard deviations) for each of the measured variables

	Rossion & Pourtois (2004)			Current study
Variable	S&V (1980) line drawings	Grey shaded drawings	Color shaded drawings	Grey photos	Color photos
Naming Accuracy	88.2 (17.1)	89.2 (17.2)	90.3 (16.9)	94.44 (8.18)	94.76 (7.74)
Naming Agreement (H)	0.44 (0.56)	0.38 (0.52)	0.32 (0.46)	0.24 (0.33)	0.22 (0.31)
Mental Imagery Agreement	3.73 (0.48)	3.76 (0.55)	3.74 (0.63)	3.46 (0.56)	3.74 (0.65)
Familiarity	3.59 (0.94)	3.52 (1.01)	3.44 (1.01)	4.13 (0.56)	4.19 (0.54)
Visual complexity	2.76 (1.03)	2.88 (1.03)	2.7 (0.94)	2.87 (0.62)	3.16 (0.63)
Color diagnosticity	- -	- -	3.18 (1.23)	- -	3.22 (0.84)