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),…

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…

Methods and outcomes from functional behavioral assessment have been researched widely over the past twenty-five years. However, several important research questions have yet to be examined sufficiently. This quantitative review of developmental disability research aims to make comparisons of different functional behavioral assessment…

A method is described for estimating changes in the rate of development because of an early intervention program as applied to developmentally disabled children. The clinical usefulness of the technique described seems to outweigh the potential for admitted but unavoidable methodological imperfections. (Author)

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,…

Data are summarized from 152 single-subject analyses of the reinforcing functions of self-injurious behavior (SIB) in individuals with developmental disabilities. Overall results indicated that functional analysis methodologies are extremely effective in identifying the environmental determinants of SIB on an individual basis and, subsequently, in…

An approach based on Skinner's (1957) theory of verbal behavior has been developed to understand and teach elementary communication skills to children with autism and developmental disabilities (Sundberg & Partington, 1998). However, few studies have directly examined the characteristics of emerging language in children with developmental…

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…

This paper describes some of the procedures most frequently used in research on staff training and reviews the research in relation to outcomes for clients with developmental disabilities as a function of staff training, maintenance of staff skills, and transfer of staff skills across settings, clients, and programs. Issues in behavioral…

The paper compares evaluation requirements established under P.L. 94-103 (Developmental Disabilities Assistance and Bill of Rights Act) and P.L. 94-142 (Education for All Handicapped Children Act). The correspondence of the requirements to traditional evaluation models is noted, and obstacles to implementation of the evaluation procedures are…

This book presents 11 papers on the use of neuroimaging technology in brain-related disorders. The text contains full-color neuroimaging scans and provides both theoretical and methodological explanations of the various neuroimaging techniques and their application to developmental disorders in children. The papers are grouped into three sections,…