The BCBA Task List (5th and 6th Edition) requires behavior analysts are familiar with multiple assessment methods, including tools to assess the function of problem behaviors and assess skill strengths and deficits. Although several studies exist on the assessment of functions using indirect functional assessments, descriptive functional…

Despite the early onset of challenging behaviors, there is a lack of research investigating the function of challenging behavior in toddlers with autism spectrum disorder (ASD) and developmental disabilities (DDs). The current study evaluated group differences in the frequency and severity of five functions of challenging behavior (i.e.,…

Background: The Developmental Behaviour Checklist (DBC) is an established, internationally used questionnaire for assessing behavioural and emotional problems among young people with developmental or intellectual disabilities (ID). The present study aims to evaluate the psychometric properties of its German teacher version (DBC-T). Method: The…

Background: Children with a developmental disability often engage in challenging behaviour, which may require that parents implement behavioural assessments and interventions. The purpose of our pilot study was to examine the effects of an interactive web training (IWT) to teach behavioural function identification and intervention selection to…

The Autism Diagnostic Interview-Revised (ADI-R) has been validated as a tool to aid in the diagnosis of Autism; however, given the growing diversity in the United States, the ADI-R must be validated for different languages and cultures. This study evaluates the validity of the ADI-R in a US-based Latino, Spanish-speaking population of 50 children…

Background: Accurate measurement of adaptive behaviour is important in both clinical and research contexts. While several good clinical measures exist, as well as brief research measures for adults with intellectual disability, there is need for a brief and efficient measure for research with children and youth. We present preliminary psychometric…

This study investigated the psychometric properties of the Child and Family Quality of Life scale, a measure of psychosocial quality of life in those with autism and related developmental disorders. Parents of 212 children suspected of autism spectrum disorder completed the Child and Family Quality of Life prior to a diagnostic evaluation. Results…

The Delis Rating of Executive Function (D-REF) is a set of rating scales designed to assess executive functions and their constituent sub-processes in children and adolescents between the ages of 5 and 18. More specifically, the D-REF is a supplemental assessment of children and adolescents demonstrating behavioral or cognitive difficulties often…

Reliable and valid assessment of aberrant behaviors is essential in empirically verifying prevention and intervention for individuals with intellectual or developmental disabilities (IDD). Few instruments exist which assess behavior problems in infants. The current longitudinal study examined the performance of three behavior-rating scales for…

Few studies have explored the subjective mental health of adolescents with intellectual disabilities, while proxy ratings indicate an overrepresentation of mental health problems. The present study reports on the design and an initial empirical evaluation of the Well-being in Special Education Questionnaire (WellSEQ). Questions, response scales,…

Behavioral pain assessment is possible for children and youth with intellectual and developmental disabilities (IDD). However, pain behavior is often misinterpreted as reflecting psychopathology. We examined whether psychopathology alters pain behavior. Caregivers of 123 children (56 girls ages 40 to 258 months) completed the Non-Communicating…

Evaluated clinical utility and construct validity of seven new Missouri Children's Behavior Checklist behavior profiles and compared them to four original profiles. Results indicated that seven cluster solution classified equally as well as four cluster solution, but with increased differentiation into more specific internalizing and externalizing…

This paper reviews the psychometric properties, treatment utility, and conceptual basis of instruments used to identify the functions of aberrant behaviors in people with developmental disabilities. Instruments include the Motivational Assessment Scale, Motivation Analysis Rating Scale, Functional Analysis Interview Form, and Functional Analysis…

Evaluated construct validity of the Missouri Children's Behavior Checklist scales and behavior profiles by determining the relationship between the MCBC and the clinical findings of an interdisciplinary evaluation of children (N=217) referred for developmental disabilities. Analyses showed substantial association between the MCBC and clinical…

The "Behavior Problems Inventory" (BPI) is a behavior rating instrument for self-injurious, stereotypic, and aggressive/destructive behavior in mental retardation and other developmental disabilities. Evaluation with 432 residents in a developmental center found the BPI to be a reliable (retest reliability, internal consistency, and…