As for that, yes, the figure must be folded into the screen. This is a very important concept to understand. On the other side of those panels, think of it as being black. The pattern is only on the side you see.
1) yeh u need to fold INTO the screen, or the some colored images woun't show up in the 3-D version in your head lol
2) I think the cube counting on the DAT was easier than the CDP. However, cube counting IN GENERAL is the EASIEST section on the DAT (CDP or real DAT), you just count cubes and be carefull about it lol. No real "perceptual" ability here