Objective: In the United States, autism spectrum disorder (ASD) is significantly less diagnosed in Spanish-speaking populations compared to other racial/ethnic groups. Structural barriers such as transportation, insurance, and time have been documented within this population. However, many families also report language as a barrier. The present…

This study aims to investigate the validation of the Rapid Interactive Screening Test for Autism in Toddlers (RITA-T) in Turkish toddlers between 18 and 36 months of age. Children aged 18-36 months were referred to the department of child psychiatry for concerns of autism spectrum disorder, language disorder, developmental delay, and typically…

Autism spectrum disorder (ASD) is an abnormal condition of brain development characterized by impaired cognitive ability, speech and human interactions, in addition to a set of repetitive and stereotyped patterns of behaviours. Although no cure for autism exists, early medical intervention can improve the associated symptoms and quality of life.…

Anxiety and autism spectrum disorder (ASD) commonly co-occur, but school-based assessment practices surrounding identification of co-occurring presentations are not well understood. This study examined school psychologists' assessment practices for anxiety in students with ASD, perceptions of their role in the assessment process, and perceived…

The prevalence of autism spectrum disorder in the world has increased over the last decade, but the prevalence, incidence, and characteristics of autism spectrum disorder in China were not well understood. Using administrative data, we aimed to estimate the prevalence and incidence of autism spectrum disorder and describe the co-occurring…

The research on autism spectrum disorder (ASD) disproportionately originates from high-income countries, indicating a disparity of research in low- and middle-income countries (LMIC). One possible reason for this disparity is a lack of culturally appropriate screening and diagnostic tools for use in LMIC. Although a number of tools are commonly…

This study investigated the psychometric properties of the Autism Mental Status Examination (AMSE) in a Brazilian sample of children and adolescents with autism spectrum disorder (ASD). A sample of 260 children and adolescents, comprising 56 (21.5%) females and 204 (78.5%) males, was assessed. The participants were submitted to both the childhood…

Autism spectrum disorder symptom emergence is heterogeneous, yet literature comparing young children diagnosed early versus later is relatively scant. Toddlers diagnosed with autism spectrum disorder between 12 and 18 months (n = 20), 19 and 24 months (n = 65), or 25 and 41 months (n = 27) were compared on demographics, developmental functioning,…

Autism Spectrum Disorder (ASD) diagnostic tools are not designed for mental ages (MA) below 12 months. Autism Diagnostic Observation Schedule (ADOS) and Childhood Autism Rating Scale (CARS) were examined in 2-year-olds with ASD-low MA (n = 53), Global Developmental Delay (GDD; n = 175), and ASD-higher MA (n = 425). ADOS and CARS demonstrated…

Strategies for the early detection of autism spectrum disorders (ASD) in people with intellectual developmental disorder (IDD) are urgently needed, but few specific tools have been developed. The present study examines the psychometric properties of the EVTEA-DI, a Spanish adaptation of the PDD-MRS, in a large randomized sample of 979 adults with…

School psychologists play a critical role in school-based Autism (AU) evaluations. Evidence-based AU evaluations should be multimodal, include multiple informants, and assess functioning across several domains. In the current era of COVID-19, school-based AU evaluations have become increasingly complex with school psychologists having to…

This study illustrates the use of the Griffiths III Scales to further clarify a diagnosis of Autistic Spectrum Disorder and possible Attention Deficit/Hyperactivity Disorder following a test battery of the Childhood Autism Rating Scale, Conners 3-Parent and Teacher Surveys, and the Goodenough-Harris Draw-a-Person test in a child aged 6 years. The…

The American Academy of Pediatrics (AAP) released a policy statement in 2007 urging physicians to screen for autism spectrum disorder (ASD) at 18 and 24 months. This study sought to identify the screening practices of pediatricians and family physicians (FPs) in following the AAP guidelines for ASD. A survey was mailed to 1,500 pediatricians and…

Little is known about research on Autism Spectrum Conditions (ASC) in mainland China. The few available studies in mainland China have shown the screening and diagnostic instruments for ASC used in mainland China were different from the West. Literature on screening and diagnostic instruments and criteria were reviewed and current available…

The goals of our study were to (a) compare agreement between autism spectrum disorder diagnosis and outcome of the Modified Checklist for Autism in Toddlers and Parents Evaluation of Developmental Status in a sample of toddlers and (b) examine specific concerns noted for toddlers who screened negative on the Modified Checklist for Autism in…