Table 1.

Multiple-Schedule Component Characteristics

		Number of applications	Percentage of sample
Schedule-correlated stimuli	Colored cards or clothing	106	72.1
	Presence or absence of materials (e.g., activities)	22	14.9
	Typical-environment stimuli	10	6.8
	Other	5	3.4
	Not described	4	2.7
Component schedule	FR 1/EXT	139	94.5
	Other	8	5.4
Number of components	2	144	97.9
	3 or more	3	2.0