Describing the relative severity and change in autism symptoms is crucial for the appropriate characterization of clinical and research populations. The calibrated severity score (CSS) of the Autism Diagnostic Observation Schedule-2 (ADOS-2; Lord et al., 2012) was created to better describe autism symptom severity consistently across different…

Background: Prosocial helping is a fundamental communication behaviour that supports successful social relationships. This study investigated the clinical utility of the Analog Task of Prosocial Helping (AToP-H): a tool for assessing how helping is influenced by the communicative function it serves and the cues used to elicit helping in young…

The Aut-Eat Questionnaire (AEQ) provides a novel and comprehensive assessment of eating problems and patterns in children with ASD. To establish the internal consistency and discriminant validity of the AEQ, parents of children with ASD (n = 105, M[subscript age] = 40.85, SD = 15.67 months) or typical development (TD; n = 98, M[subscript age] =…

Feeding problems are prevalent in children with ASD. We investigated whether the Montreal Children's Hospital Feeding Scale (MCH-FS, Ramsay et al. in Pediatrics and Child Health 16:147-151, 2011) can be used for young children with ASD. Participants (1-6 years) were selected from a clinical ASD sample (n = 80) and a general population sample (n =…

Emotion dysregulation is common among autistic people, yet few measures have received psychometric evaluation in this population. We examined the factor structure, reliability, and validity of a commonly-used measure of emotion dysregulation, the "Difficulties with Emotion Regulation Scale" ("DERS"), in a sample of 156 autistic…

For individuals with autism spectrum disorder (ASD), behavioral inflexibility can affect multiple domains of functioning and family life. The objective of this study was to develop and validate a clinical interview version of the Behavioral Inflexibility Scale. Trained interviewers conducted interviews with parents of 144 children with ASD and 70…

Valid and reliable tools to measure mental health are a key requirement to developing a robust evidence base on mental health difficulties and autism. There are several reasons why mental health measures developed for the neurotypical population may not be valid and reliable when used with autistic adults. Using data collected from a national…

We assessed the reliability and validity of the Turkish version of the autism spectrum quotient (AQ)-adolescent. Three assessment groups of adolescents, aged 11-18, were: 80 with Asperger syndrome/high-functioning autism (AS/HFA), 71 with other psychiatric disorders (PDs; 35 major depression, 18 obsessive-compulsive disorder, 18 social phobia),…

The present study evaluates the test-retest reliability of six theory of mind (ToM) tasks that measured cognitive, affective, and spontaneous ToM in 7 to 11 year-old children with autism spectrum disorder. Our results revealed considerable variation in test-retest reliability depending on the type of ToM task, which ranged from poor to good with…

The early recognition of ASD in adults is challenging, in particular due to the lack of appropriate and robust diagnostic tools. We performed a psychometric validation and diagnostic accuracy study of the French version of the RAADS-R on a sample of 305 adults: 105 with ASD without ID, 99 with psychiatric disorders, and 103 non-psychiatric control…

The Supports Intensity Scale--Adult Version (SIS-A) was designed to measure the intensity of support needed by adults with intellectual disability (ID). The purpose of this study was to investigate the validity of the SIS-A to measure the support needs of people with autism spectrum disorder (ASD). Using data from 19 jurisdictions in North…

Background: In recent reviews of autism spectrum disorder screening tools, the Modified Checklist for Autism in Toddlers, Revised with Follow-Up (M-CHAT-R/FTM) has been recommended for use in lower middle-income countries to promote earlier identification. Aim: The study aim was to culturally adapt and translate the M-CHAT-R/FTM into Northern…

A Delphi consensus methodology was used to adapt the Autism Diagnostic Interview--Revised for the assessment of deaf children with suspected autism spectrum disorder. Each Autism Diagnostic Interview--Revised item was considered by a panel of nine international experts in terms of relevance and acceptability. Modifications were proposed and agreed…

There is a growing recognition of the need for interventions to improve the healthcare of autistic adults. However, there is a dearth of validated measures to evaluate such interventions. Our objectives were to use a community-based participatory research approach to create an accessible set of patient- and proxy-reported instruments to measure…

Our purpose in this study was to validate the Quality of Life for Children with Autism Spectrum Disorder scale. We first conducted an exploratory factor analysis to examine the factor structure. Results suggested that a three-factor model (Interpersonal Relationships, Self-Determination, and Emotional Well-Being) should be retained. Next, we…