The EU-AIMS Longitudinal European Autism Project (LEAP): clinical characterisation

Table 2 Summary of parent-report and participant self-report questionnaires

Phenotypic measures	Adults (TD)	Adults (ASD)	Adolescents (TD/ASD)	Children (TD/ASD)	Mild ID (ID/ASD)
Dimensional measures of ASD symptoms
Social Responsiveness Scale-2nd Edition (SRS-2),	S	S & P	S & P	P	P
Children’s Social Behaviour Questionnaire (CSBQ)	-	-	P	P	P
Adults’ Social Behaviour Questionnaire (ASBQ)	S	S & P	-	-	P (>18 years)
Autism Spectrum Quotient (AQ)—adult version	S	S & P	-	-	-
Autism Spectrum Quotient (AQ)—adolescent version	-	-	P	-	-
Autism Spectrum Quotient (AQ)—child version	-	-	-	P	P
Repetitive Behaviour Scale-Revised (RBS-R)	-	P	P	P	P
Short Sensory Profile (SSP)	-	P	P	P	P
Psychiatric symptoms
DSM-5 ADHD rating scale	S	S & P	P	P	P
Beck Anxiety Inventory	S	S	S	P	P
Beck Depression Inventory	S	S	S	P	P

S self-report (completed by participant), P parent-report (completed by primary carer or parent of participant), S & P self- and parent-report administered; - not administered

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