Learn More
Intellectual disability (ID) and autism spectrum disorders (ASDs) covary at very high rates. Similarly, greater severity of one of these two disorders appears to have effects on the other disorder on a host of factors. A good deal of research has appeared on the topic with respect to nosology, prevalence, adaptive functioning, challenging behaviors, and(More)
PURPOSE OF REVIEW To provide an update on recent trends and developments in the study of psychopathology in persons with intellectual disability. This topic is of considerable importance to mental health professionals as rates of psychopathology are much higher for persons with intellectual disabilities relative to the general population. RECENT FINDINGS(More)
One-hundred seventy-three studies that employed functional assessment were evaluated with respect to types of challenging behaviors studied and the functions identified that maintained those behaviors. For most studies, two to three behaviors were targeted. Of the 38 different challenging behaviors identified, self-injurious behavior (SIB) and aggression(More)
Functional assessment has become a major feature of learning-based research. A critical element of the majority of these studies includes not only methods and procedures to identify the cause of the challenging behavior, but to establish replacement treatment methods. By far the most common intervention in the 176 studies we reviewed was reinforcement.(More)
This paper is a review of person characteristics that were present in 173 studies that were reviewed on functional assessment. The purpose was to give the reader an idea about the types of individuals for which functional assessment is appropriate and to outline persons and their characteristics which have the best research support. The majority of(More)
OBJECTIVE To investigate age differences in developmental milestone attainment among toddlers with Autistic Disorder, PDD-NOS and atypical development. METHODS A questionnaire was administered to caregivers of toddlers to obtain ages of onset of developmental milestones. The study included 1044 participants with 442, 112, 498 and 497 participants in first(More)
An extensive literature on the causes of challenging behaviors has been developed, primarily in the applied behavior analysis literature. One hundred and seventy-three empirical studies were reviewed where functional assessment serves as the primary method of identifying these causes. Most of the studies were able to identify a clear function or functions.(More)
OBJECTIVE To examine the relationship between ASD diagnosis (i.e. Autism, Pervasive Developmental Disorder-Not Otherwise Specified (PDD-NOS) and atypical developing control) and tantrum/conduct symptoms in infants and toddlers. Then examine the moderating role of communication. DESIGN Analysis of Covariance was conducted for study 1 followed by(More)
  • 1