Study: NCT04812119

Intervention type: DIAGNOSTIC_TEST
Intervention: The Modified Checklist for Autism in Toddlers, Revised with Follow-Up (M-CHAT-R/F)
Description: The Modified Checklist for Autism in Toddlers, Revised with Follow-Up (M-CHAT-R/F; Robins, Fein, \& Barton, 2009) is a 2-stage parent-report screening tool to assess risk for Autism Spectrum Disorder (ASD). It is valid for children 16-30 months old.

Intervention type: DIAGNOSTIC_TEST
Intervention: The Autism Spectrum Quotient-Children's Version (AQ-Child)
Description: The Autism Spectrum Quotient-Children's Version (AQ-Child; Auyeung, Baron-Cohen, Wheelwright \& Allison, 2008) is a parent-report questionnaire that aims to quantify autistic traits in children 4-11 years old. It contains 50 likert-type items with responses ranging from definitely agree to definitely disagree.

Intervention type: DIAGNOSTIC_TEST
Intervention: The Autism-Spectrum Quotient (AQ)-Adolescent Version (AQ-Adolescent)
Description: The Autism Spectrum Quotient-Children's Version (AQ-Child; Auyeung, Baron-Cohen, Wheelwright \& Allison, 2008) is a parent-report questionnaire that aims to quantify autistic traits in children 12-15 years old. It contains 50 likert-type items with responses ranging from definitely agree to definitely disagree.

Intervention type: DIAGNOSTIC_TEST
Intervention: The Viking's Speech Scale
Description: The Viking Speech Scale (Pennington, Virella, Mjøen, da Graça Andrada, Murray, Colver, ... \& Andersen, 2013) is used to classify children's speech production, specifically the ease at which children can make themselves understood using different methods of communication. The scale has four levels and is ordinal. The four levels include: (1) speech is not affected by motor disorder (2) speech is imprecise but usually understandable to unfamiliar listeners (3) speech is unclear and not usually understandable to unfamiliar listeners out of context (3) no understandable speech. It is intended for children above the age of 4 years.

Intervention type: DIAGNOSTIC_TEST
Intervention: The Functional Communication Classification System (FCCS)
Description: The Functional Communication Classification System (Barty, Caynes \& Johnston, 2016) was designed to classify how children with cerebral palsy communicate on a daily basis. The tool focuses on how children typically communicate with familiar and unfamiliar communication partners. There are five classifications a child can be categorized in: (1) effective communicator in most situations (2) effective communicator in most situations, but does need some help (3) an effective communicator in most situations and can communicate small ranges of messages and topics to most familiar people (4) assistance is required in most situations, especially with unfamiliar people and environments. Communicates daily needs and wants to familiar people (5) communicates using undirected movement, vocalisation and/or behaviour, for interpretation by familiar people. The FCCS is valid for use in children up to 13 years.

Intervention type: DIAGNOSTIC_TEST
Intervention: Brief Infant Sleeping Questionnaire (BISQ)
Description: The Brief Infant Sleep Questionnaire (BISQ; Sadeh, 2004) is used to assess sleep patterns, parent perception, and sleep-related behaviors in young children (0-36 months). The BISQ has been validated against actigraphy, daily logs, and has high sensitivity in documenting expected developmental trends in sleep.

Intervention type: DIAGNOSTIC_TEST
Intervention: Pediatric Sleep Questionnaire (PSQ)
Description: Pediatric Sleep Questionnaire (PSQ; Chervin, Hedger, Dillon, Pituch, 2000) has been designed to screen for sleep problems in children. The scale consists of 22 parent-reported items examining snoring and breathing problems, daytime sleepiness, inattention, hyperactivity, and other signs and symptoms of apnea including obesity and nocturnal enuresis. Those questions specifically relate to sleep-disordered breathing (SDB) in children. PSQ has been validated for children 2-18 years old.

Intervention type: DIAGNOSTIC_TEST
Intervention: The Eating and Drinking Ability Classification System (EDACS)
Description: The Eating and Drinking Ability Classification System (EDACS; Sellers, Mandy, Pennington, Hankins, Morris, 2013) has been developed for people with cerebral palsy to describe five distinct levels of ability using the key features of safety and efficiency. The patient can be categorized in: (1) eats and drinks safely and efficiently, (2) eats and drinks safely but with some limitations to efficiency, (3) eats and drinks with some limitations to safety; maybe limitations to efficiency, (4) eats and drinks with significant limitations to safety or (5) unable to eat or drink safely - tube feeding may be considered to provide nutrition. The EDACS is valid for use in children above the age of 36 months.

Intervention type: DIAGNOSTIC_TEST
Intervention: Mini Manual Ability Classification System (Mini-MACS)
Description: The Mini Manual Ability Classification System (Mini-MACS; Eliasson, Krumlinde-Sundholm, 2013) describes how children with cerebral palsy use their hands to handle objects in daily activities. MACS describes five levels. The levels are based on the children's self-initiated ability to handle objects and their need for assistance or adaptation to perform manual activities in everyday life. It has been validated for children 1-4 years of age.

Intervention type: DIAGNOSTIC_TEST
Intervention: Manual Ability Classification System (MACS)
Description: The Manual Ability Classification System (MACS; Eliasson, Krumlinde Sundholm, Rösblad, Beckung, Arner, Öhrvall, Rosenbaum, 2006) describes how children with cerebral palsy use their hands to handle objects in daily activities. MACS describes five levels. The levels are based on the children's self-initiated ability to handle objects and their need for assistance or adaptation to perform manual activities in everyday life. It has been validated for children 4-18 years.

Intervention type: DIAGNOSTIC_TEST
Intervention: The Gross Motor Function Classification System - Expanded and Revised (GMFCS - E&R)
Description: The Gross Motor Function Classification System - Expanded \& Revised (GMFCS - E\&R; Palisano, Rosenbaum, Bartlett, Livingston, 2007) is a 5-level classification system that describes the gross motor function of children and youth with cerebral palsy on the basis of their self-initiated movement with particular emphasis on sitting, walking, and wheeled mobility. Distinctions between levels are based on functional abilities, the need for assistive technology, including hand-held mobility devices (walkers, crutches, or canes) or wheeled mobility, and to a much lesser extent, quality of movement. The questionnaire is available for four age groups of children and youth: 2 to \< 4 years, 4 to \< 6 years, 6 to \< 12 years, and 12 to 18 years.