Table 1.

Assessment domains and measures

Domain	Measure	Variables
Cognition and language	Mullen Scales of Early Learning Leiter-R Stanford-Binet-Fifth Edition Preschool Language Scales-Fifth Edition	Standard scores IQ/DQ
Adaptive behavior	Vineland Adaptive Behavior Scales	Standard scores DQ
Motor skills	Mullen Scales of Early Learning Vineland Adaptive Behavior Scales	Standard scores DQ
Autism characteristics	Autism Diagnostic Observation Schedule-Second Version: Modules T, 1, 2, 3	Raw scores CSS