This article discusses why and how states are integrating "DC:0-5™: Diagnostic Classification of Mental Health and Developmental Disorders of Infancy and Early Childhood" (DC:0-5) into state policy and systems; provides state examples to highlight some of the strategies that states have used to allow, promote, or require the use of…

The international classification of functioning, disability, and health for children and youth (ICF-CY) developed by the World Health Organization (WHO) is a framework for understanding concepts of disability specific to children and youth. This framework has been used in countries around the world to support the education of children with…

Three levels of investigation underlie all biologically based attempts at classification of behaviorally defined developmental and psychiatric disorders: Level A, pseudo-categorical classification of mostly dimensional descriptions of behaviors and their disorders included in the 2013 American Psychiatric Association's Fifth Edition of the…

This Policy Research Brief proposes an organizational framework for understanding the characteristics of Postsecondary Education (PSE) programs for persons with Intellectual and Developmental Disabilities (IDD) and the relationship of those characteristics to outcomes. The adoption of such a taxonomy could increase understanding of the variety of…

People with an intellectual disability have existed across human history, making up a part of all cultures. They represent a small part of the extremely wide variety of people in the human population at any one time. This review essay examines the 11th and latest Definition and Classification Manual published by the American Association on…

Review of 78 evaluations for 29 young children examined practices used in assessment of autism spectrum disorders in three settings: public schools, developmental disabilities eligibility determinations, and our hospital-based early childhood mental health program. While similar rates of classification of autism spectrum disorders were found…

Reports of associated disabilities among children with specific language impairment (SLI) and children with other developmental disabilities are widespread. Clinicians require a broader definition of SLI that recognizes associated disabilities because it is their goal to impact children's everyday functioning. In this paper, we explore SLI from a…

This paper compared clinicians' diagnosis and DSM-III (Diagnostic and Statistical Manual), DSM-III-R (Revised), and ICD-10 (International Classification of Diseases) diagnoses of 52 individuals with autism and 62 nonautistic, developmentally disordered individuals. The DSM-III-R system overdiagnosed the presence of autism, and ICD-10 closely…

This study characterized individual advocacy performance differences of 3 individuals with developmental disabilities and 21 parents before and after participating in training programs called Partners in Policymaking. A three group taxonomy of advocate development (beginner, involved, and activist) is suggested. (DB)

Developmental language disorders in preschool children are described. Levels of linguistic functioning are defined, and clinical language disorders are presented. Implications for the school psychologist are discussed, with an emphasis on assessment of verbal and non-verbal functions. (SLD)

The authors discuss activities that help mentally handicapped adults emphasize thinking processes: observation questions, impact chart, solving a puzzling situation, and use of examples/nonexamples. The authors stress use of simple concepts, concrete objects, and realistic situations in developing intellectual skills. (CT)

In this paper, we utilise an approach drawn from the field of epidemiology to explore what is known and unknown about young children with Down syndrome and their families. After describing what we mean by an epidemiological approach, we review basic findings for children with intellectual disabilities, as well as challenges to performing such…

Approximately 400,000 preschool children have a major neurodevelopmental disorder impacting on mobility, cognitive-adaptive, or communicative skills. As many as 1 in 3 children live at psychosocial disadvantage because of poverty, parental mental illness or substance misuse, or low parental educational (i.e. less than high school). In the past…