The diagnostic criteria for autism spectrum disorder in the DSM-5-TR features the option to designate levels of support for social communication (SC) and restricted, repetitive behaviors (RRB). These levels are conceptual in nature, but research indicates standardized assessment outcomes correspond with clinician-assigned levels of support. The…

Given the negative outcomes associated with problem behavior and the heightened risk for children with disabilities to display problematic behavior, the current study implemented hierarchical linear modeling to explore the growth trajectories of problem behavior in a nationally representative sample of preschool children with disabilities. Results…

Assessment of children's restricted and repetitive behaviours offers potential opportunities to improve early diagnosis of autism spectrum disorder (ASD) and timely access to interventions and support. To facilitate this requires understanding of the phenomenology of repetitive behaviours in ASD, including differentiating behaviours seen in ASD…

Background: The nosology of autism spectrum disorders (ASD) is at a critical point in history as the field seeks to better define dimensions of social-communication deficits and restricted/repetitive behaviors on an individual level for both clinical and neurobiological purposes. These different dimensions also suggest an increasing need for…

Prader-Willi syndrome (PWS) is characterized by temper tantrums, impulsivity, mood fluctuations, difficulty with change in routine, skinpicking, stubbornness and aggression. Many studies on behavior in PWS are limited by sample size, age range, a lack of genetically confirmed diagnosis of PWS and inconsistent assessment of behavior. The aim of…

Background: There is little evidence to guide the commissioning of residential provision for adults with autistic spectrum disorder (ASD) in the UK. We aim to explore the degree and impact of diagnostic congregation among adults with intellectual disabilities (ID) and ASD living in staffed housing. Methods: One hundred and fifty-seven adults with…

Base rate information is important in clinical assessment because one cannot know how unusual or typical a phenomenon is without first knowing its base rate in the population. This study empirically determined the base rates of social skills acquisition and performance deficits, social skills strengths, and problem behaviors using a nationally…

Aim: The aim of this study was to describe and identify factors associated with motivation in children with cerebral palsy (CP). Method: Children with CP were recruited for this cross-sectional study. Children were assessed using the Leiter Intelligence Test, the Gross Motor Function Measure, and the Vineland Adaptive Behavior Scale. Parents…

The central goal of this longitudinal study was to develop a laboratory-based index of children's covert cheating behavior that distinguished normative rule violations from those that signal risk for antisocial behavior. Participants (N = 215 children) were drawn from a community population and oversampled for externalizing behavior problems…

An empirical typology of classroom emotional and behavioral adjustment was developed for preschool children living in urban poverty. Multistage hierarchical cluster analyses were applied to identify six distinct and reliable subtypes of classroom adjustment, differentiated by high and low levels of behavioral (aggressive, inattentive,…

This exploratory research studied middle-class mother's primary reason for registering their young children, mean age 6.9 years, in adapted motor and sports programs and their perceptions of their children upon entering the program and upon completion. Analyses also examined the possible relationship between mothers' age, education or children's…

This is the 32nd Annual Report to Congress on the Implementation of the Individuals with Disabilities Education Act, 2010. Section 664(d) of the Individuals with Disabilities Education Act (IDEA) (P.L. 108-446), as reauthorized in 2004, requires that the Department of Education report annually on the progress made toward the provision of a free…

It is generally accepted that Attention-Deficit/Hyperactivity Disorder (ADHD) results from a dysfunction of the central nervous system, which has led to a commonly held belief that environmental factors play little role in the behavioural problems of children identified as having ADHD. Therefore, the two studies reported in this article…

Neonatal assessments should provide valid estimates of behavior and neurological status, reflect recovery from acute effects, predict subsequent outcome, and point to specific intervention strategies for any problems noted. The authors report relations among measures designed to evaluate early behavioral capabilities and dysfunctions in areas…

This is the 30th Annual Report to Congress on the Implementation of the Individuals with Disabilities Education Act, 2008. Section 664(d) of the Individuals with Disabilities Education Act (IDEA), as reauthorized in 2004, requires that the Department of Education report annually on the progress made toward the provision of a free appropriate…