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),…

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…

Our objective was to develop a measure of healthcare providers' self-efficacy in providing healthcare to autistic adults and to better understand their training needs. We used a community-based participatory research approach with academic researchers, autistic adults, supporters, and healthcare providers. We developed a one-page questionnaire…

This study describes the development and psychometric evaluation of a new self-report measure of social cognition: the Theory of Mind Inventory:Self-Report--Adult (ToMI:SR-Adult). Adults with autism (or a suspicion of autism; n = 111) and typically developing adults (n = 109) completed a demographic questionnaire and the ToMI:SR-Adult online. Both…

Although 70% of autistic children and young people meet criteria for co-occurring psychiatric conditions, there are few screening measures specifically for autistic individuals. We describe the development and validation of the Assessment of Concerning Behavior (ACB), an instrument co-developed with the autistic community to assess mental health…

Although symptoms of autism are present early in life and early diagnosis can lead to better outcomes, there is a dearth of validated caregiver-report interviews designed for children under the age of 3 years. We developed the Toddler Autism Symptom Inventory, a semi-structured interview designed to assess the presence and absence of skills and…

It is important for all professionals who work with individuals who have ASD to have sufficient knowledge of the disorder. The development of ASD knowledge may occur during preservice training and/or through professional development. Currently, there is no "gold standard" measure of ASD knowledge. A study focusing on the development of a…

Despite the dramatic rise in Autism Spectrum Disorder (ASD) prevalence, limited information is known about ASD knowledge of the general population. The Autism Spectrum Knowledge Scale, General Population version (ASKSG) was collaboratively constructed to create a measure of ASD knowledge specifically for the general population. The ASKSG is a…

Introduction: Current measures of restrictive and repetitive behavior (RRB) in people with autism focus on severity and intensity and, to some degree, the global interference of the behavior. In this study we developed the Social Impact of Repetitive Behavior Scale (SIRBS) to capture several different contexts in which repetitive behavior is…

Negatives attitudes toward children with autism are an important barrier to school inclusion. Despite the increasing amount of research, no psychometrically sound scale reliably measures these attitudes in young students. Our aim was to develop and validate a tool (Children's Attitudes Toward Autism Questionnaire) to evaluate attitudes (three…

Introduction: This article describes the development of an Aggression and Restriction Observation Checklist (AROC) for use in residential and in-patient services for adults with intellectual disabilities (ID). The AROC was developed in collaboration between researchers and frontline staff. It assesses self-, person-, and object-directed aggressive…

While autism spectrum disorder screening tools provide a useful resource for practitioners, the reality is they are underused. The justifications often provided include the time required for administration and the training involved. A brief tool with good psychometric properties that require minimal training is required. This study examined the…

This is a multi-method study to develop and validate an instrument to measure teachers' self-efficacy for teaching students with autism spectrum disorder (ASD) in inclusive early childhood classrooms, "Teacher Self-efficacy for Teaching Students with ASD Inclusive Classrooms Scale": TSE-ASDI. I conducted literature and expert reviews as…

People with autism spectrum disorder (ASD), can have difficulties in emotion processing, including recognising their own and others' emotions, leading to problems in emotion regulation and interpersonal relating. This study reports the development and piloting of the Client Emotional Processing Scale-Autism Spectrum (CEPS-AS), a new observer…