A quantitative measure of restricted and repetitive behaviors for early childhood

Table 2 Repetitive Behavior Scale for Early Childhood composite and subscale scores

	Scoring scale	Total sample (n = 914)		Females (n = 442)		Males (n = 472)
RBS-EC scale	Min/max	Mean	SD	Mean	SD	Mean	SD
Composite topographies	0/34	12.0	6.7	11.6	6.8	12.3	6.6
Repetitive motor topographies	0/9	5.8	3.0	5.7	3.1	5.9	3.0
Ritual and routine topographies	0/10	2.0	2.0	2.0	2.1	2.0	1.9
Restricted topographies	0/8	2.6	2.2	2.4^a	2.2	2.7^a	2.2
Self-directed topographies	0/7	1.6	17	1.6	1.8	1.6	1.6
Composite frequency	0/136	24.6	16.7	23.3^a	16.1	25.8^a	17.1
Repetitive motor frequency	0/36	15.2	11.2	14.6	11.3	15.7	11.2
Ritual and routine frequency	0/40	2.9	3.5	2.7	3.1	3.1	3.8
Restricted frequency	0/32	4.3	4.4	3.8^a	4.1	4.7^a	4.7
Self-directed frequency	0/28	2.2	2.7	2.1	2.7	2.2	2.7

ISSN: 1866-1955