Background: Both parent-report and clinician-administered autism spectrum disorder (ASD) screening instruments are important to accurately inform ASD risk ascertainment. The aim of this study was to adapt a clinician-administered ASD screening instrument, the Autistic Behavioural Indicators Instrument (ABII), as a parent questionnaire equivalent…

This study evaluated the psychometric properties of the Scale of Treatment Perceptions (STP), a measure of treatment acceptability targeting skill-building interventions for Autism Spectrum Disorder (ASD). This scale utilizes a strength-based approach to intervention assessment, and was established by modifying the Behavior Intervention Rating…

The "autism spectrum disorder observation for children" ("ASD-OC") is a newly created 54-item observation measure for autism spectrum disorders (ASD). Due to the fact that many of the ASD observation measures currently available do not have established psychometric properties and require extensive time and training to administer, the "ASD-OC"…

Poor reciprocity is a defining feature of an autism spectrum disorder (ASD). In the current study, we examined the reliability and validity of the Interactive Drawing Test (IDT), a new instrument to assess reciprocal behavior. The IDT was administered to children and adolescents with ASD (n = 131) and to a typically developing group (n = 62). The…

The author reviews Childhood Autism Rating Scale-Second Edition (CARS2), a useful tool for supporting the diagnostic process and for forming intervention recommendations once a diagnosis has been made. CARS2 consists of three rating forms designed to identify symptoms associated with autism spectrum disorders (ASD). Published in 2010, the CARS2…

The objective of present research is to conduct validity and reliability analysis of the verbal section of Test of Pretended Play that will measure pretended play behaviors of pre-school age children (3-6 years of age). Test of Pretended Play was first developed by Vicky Lewis and Jill Boucher in 1997. This test aimed to measure pretended play…

This article reviews Autism Spectrum Rating Scales (ASRS) which are designed to measure behaviors in children between the ages of 2 and 18 that are associated with disorders on the autism spectrum as rated by parents/caregivers and/or teachers. The rating scales include items related to behaviors associated with Autism, Asperger's Disorder, and…

The success of early intervention programs has in large part spurred increasing emphasis on identifying children with autism and Pervasive Developmental Disorder-Not Otherwise Specified (PDD-NOS) at the earliest possible ages. National and international professional groups have called for early screening and diagnosis, yet the technology to…

The usefulness of the Preschool Preposition Test (PPT) as a cognitive screening and diagnostic tool for handicapped children is demonstrated through results of eight independent studies. The subjects were 354 children and youths, aged two to 20 years, with various handicaps: mentally retarded, autistic-like, moderately emotionally disturbed,…