Behavioural and adaptive questionnaire measures
| Domain | Measure | Description | Cohort |
| ASD symptomatology | SRS-277 | 65 items assessing the presence and severity of ASD symptoms including social awareness, social cognition, social communication, social motivation and restricted interests and repetitive behaviour | Y, S |
| ADHD symptomatology | CADS78 | 26 items assessing ADHD symptoms of impulsivity/hyperactivity and inattention | Y |
| Conners 379 | 110 items assessing ADHD symptom and comorbid disorders including oppositional defiant and conduct problems, executive functions, learning problems, peer relations and defiance/aggression | S | |
| Executive function | BRIEF-Preschool80 | 63 items assessing executive functions within the home environment, including working memory, mental set shifting, response inhibition, emotional control and planning/organisation | Y |
| BRIEF81 | 86 items assessing executive functions in the home environment, including working memory, mental set shifting, response inhibition, emotional control, planning/organisation, organisation of materials, initiation and behaviour monitoring | S | |
| Adaptive functioning | ABAS-3: 0–5 years82 | 241 items assessing adaptive functioning skills, including communication, community use, preacademics, home living, health and safety, leisure, self-care, self-direction and social abilities | Y |
| ABAS-3: 5–21 years82 | 232 items assessing adaptive functioning skills, including communication, community use, functional academics, home living, health and safety, leisure, self-care, self-direction and social abilities | S | |
| Social skills | SSIS Rating Scale83 | 79 items assessing social skills, problem behaviours and academic competence | Y, S |
| Sensory processing | Sensory Profile 284 | 86 items assessing sensory processing, including auditory, visual, taste/smell, movement, body position, touch, plus behavioural skills including activity levels and emotional/social skills | Y, S |
| Behavioural, emotional, social problems | CBCL: 1.5–5 years85 | 100 items assessing internalising and externalising problems, emotional reactivity, anxiety/depression, somatic complaints, withdrawal, sleep problems, attention problems and aggressive behaviours | Y |
| CBCL: 6–18 years86 | 113 items assessing internalising and externalising problems, emotional reactivity, anxiety/depression, somatic complaints, withdrawal, sleep problems, attention problems and aggressive behaviours | S | |
| Pragmatic language | CCC-287 | 70 items assessing speech, syntax, semantics, coherence, inappropriate initiation, stereotyped language, use of context, non-verbal communication, social relations and interests | Y, S |
ABAS-3, adaptive behaviour assessment system, 3rd edition; ADHD, attention deficit/hyperactivity disorder; BRIEF, behavior rating inventory of executive functions; CADS, Conners’ attention deficit hyperactivity disorder scales; CBCL, child behavior checklist; CCC-2, children’s communication checklist, 2nd edition; SRS-2, Social Responsiveness Scale, 2nd edition; SSIS, social skills improvement system.