Formal preference assessments are commonly implemented as a way to evaluate potential reinforcers for individuals diagnosed with autism spectrum disorder, developmental disabilities, and intellectual disabilities. Today there are numerous formal preference assessments that can be used clinically, and which have been evaluated empirically.…

An increasing number of investigations have described various interventions to promote the emergence of derived responding within the relation of sameness for individuals with autism and other intellectual and developmental disabilities. Systematic searches identified 53 studies published since 2013 that met inclusion criteria. These studies were…

Background: The ability to learn new words is critical in the development of oral and written language, and significantly impacts engagement in social, academic and vocational situations. Many studies have evaluated the word-learning process in people with developmental language disorder (DLD). However, methodologies for assessment are…

Individuals with intellectual or developmental disabilities are able to reliably express their likes and dislikes through direct preference assessment. Preferred items tend to function as rewards and can therefore be used to facilitate the acquisition of new skills and promote task engagement. A number of preference assessment methods are…

The two most frequently used methods for assessing performance on chained tasks are single opportunity probes (SOPs) and multiple opportunity probes (MOPs). Of the two, SOPs may be easier and less time-consuming but can suppress actual performance. In comparison, MOPs can provide more information but present the risk of participants acquiring…

Clinical Question: Should practitioners conduct a formal or informal communication assessment prior to completing a preference assessment to accurately identify preferences for students with severe developmental disabilities? Method: Systematic Literature Review. Sources: Cumulative Index of Nursing and Allied Health Literature (CINAHL),…

Children born preterm are at risk for developmental deficits across multiple functional domains. As the rate of survival for preterm infants increases due to medical advancements, a greater understanding is needed for how to meet the needs of this growing population in schools. Because approximately 50-70% of children born preterm require…

Sleep disturbance is a common problem in children with developmental disabilities. Effective pharmacologic interventions are needed to ameliorate sleep problems that persist when behavior therapy alone is insufficient. The aim of the present study was to provide an overview of the quantity and quality of pharmacologic research targeting sleep in…

Background: Intellectual and developmental disability (IDD) researchers have been relatively slow to adopt the search for moderators and mediators, although these variables are key in understanding how and why relationships exist between variables. Although the traditional method of causal steps is useful for describing and understanding…

Historically, intervention programmes in intellectual and developmental disabilities have targeted the individual's special needs independent of the family and environmental context. This trend has been changing over the past two decades. This paper presents a literature review on changing trends in family support and the development of family…

Pica is a very serious and often life threatening problem which occurs largely in persons with developmental disabilities. The topic has received sporadic attention from researchers for several decades. This paper reviews definitions, diagnostic implications, causes, prevalence, and assessment methods that have been described in the research…

The research concerning three major types of measures designed to identify young children at risk of experiencing school problems is reviewed. Teacher perception, test batteries, and single instruments are discussed in terms of general considerations for use, advantages, and disadvantages. (Author/DB)

This review of the literature on functional assessment and treatment of challenging behavior in children and adults with developmental disabilities first discusses functional assessment methods and then research issues, including informant assessment, direct observation assessment, and experimental (functional) analysis. The implications of this…

This article discusses clinical application of functional analysis in developmental disabilities, reviewing issues related to treatment logic and development. The article then approaches functional analysis as a research method, reviewing three areas of research: analysis of diverse response topographies, analysis of basic behavioral processes,…

An introduction to the concepts and terminology of chaos science and a discussion of its implications for the behavioral and social sciences are provided. The paper points out that chaos science assumptions pertaining to nonlinearity, controlled randomness, and dynamic system modeling offer challenging new directions to assessment and intervention…