Table 1.

School and Student Characteristics

Characteristic	Mean or % (SD) - Range
Urbanicity
Rural/Town	15.0
Suburb	45.0
City	40.0
School Size	1890 (70.1)
SES (% Title 1 Eligible)	56.7
Ethnicity
White, non-Hispanic	51.3
Hispanic	24.1
Black, non-Hispanic	13.9
Asian	6.22
More than 2 races	3.75
American Indian/Alaskan	.520
Native Hawaiian	.290
Leiter-3 (Nonverbal IQ)	85.8 (27.2)
	30-141
Vineland Adaptive Behavior Composite SS	75.7 (16.7)
	20-131
Social Responsiveness Scale (ASD Severity)
Severe	33.9
Moderate	31.7
Mild	16.9
No ASD or Missing	18.6