| AC-105 | A variable task that allows 
			sorting of 2 to 36 types of pieces. Users learn to watch for 
			relevant cues (size, color, shape) while ignoring irrelevant 
			cues. Begin with a simple 2 item sort, blue squares and 
			yellow circles, for example; then add all blue pieces and 
			all yellow pieces and sort by color, then all three colors. 
			Eventually the task can be a 36 item sort of pieces by color 
			(3 colors), shape (3 shapes) and size (2 sizes). 
			Includes 216 plastic chips 
			in three colors, three shapes and two sizes, and all bins 
			and boxes. Instructions explain sorting options. Sorting 
			tasks stress quality and are not normed for speed. 
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