We reviewed twelve studies that used the constant time delay (CTD) procedure to teach chained tasks to individuals with developmental disabilities from years 1996-2006. Variables analyzed include types of tasks that have been taught with the procedure, how effective CTD has been in teaching participants, and whether researchers have investigated…

A review of applications of motion study in developmental disabilities identifies two eras of research focus in the 1990s: (1) studies establishing the effectiveness and efficiency of tasks designed with motion study principles and (2) studies examining the interaction between motion study-based task designs and other variables such as choice,…

The article reviews the ways in which norm-referenced developmental age (DA) and developmental quotient (DQ) evaluation data are currently reported in preschool early intervention program evaluation studies. The concept of intervention DQ in contrast with pretest DQ is proposed as a more meaningful way to report evaluation data. (Author/DB)

Federal laws mandate that students with cognitive disabilities receive instruction in academic skills and also support the importance of teaching self-determination. The purpose of this literature review was to synthesize intervention research examining effects of self-determination interventions on academic skills for students with cognitive…

Available information is reviewed on defining features and diagnostic issues related to autism and related developmental disorders. Controversies over both the boundaries and the heterogeneity within the autism syndrome are evaluated. Diagnostic rating instruments for expediting systematic sample selection are critiqued. (Author/DB)

This article discusses problems inherent in the analysis of automatically reinforced behaviors, which are behaviors that are maintained by operant mechanisms independent of the social environment. Four classes of treatment that are compatible with automatic reinforcement are reviewed, including manipulations of establishing operations, sensory…

This paper examines the validity of Asperger syndrome as a condition apart from high-functioning autism. Potential differences between Asperger syndrome and autism is possible if both are strictly defined. The importance of genetic factors in Asperger syndrome is stressed. Research on the nosological validity of this condition and its relationship…

This paper reviews recent literature on health issues for adults with developmental disabilities, reflecting on how it informs service provision, future research, and social and health policy. Results suggest future research should focus on interactions among biology, pathology, and behavioral and environmental determinants. More use of…

This paper reviews the functional properties and procedural variations of differential reinforcement for the reduction of behavior disorders in individuals with developmental disabilities. The paper proposes that limited success may be a result of the arbitrary relationship that exists between reinforcers and target behaviors when behavioral…

This research review concerning intervention to improve young children's social behavior and strategies for promoting generalization and maintenance of young children's social responding focuses on taking advantage of natural communities of reinforcement, training diversely, and incorporating functional mediators. Implications for interventionists…

The empirical support for three theoretical approaches to infant intervention is reviewed, including direct intervention via nonsocial means, direct intervention via social means, and indirect infant intervention via social support to the family. For each approach, underlying theoretical assumptions are identified, and for each assumption,…

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,…

This paper reviews the literature on functional assessment in the behavioral treatment of aggression in persons with mental retardation or developmental delays. Increased use of functional assessment and skill training is noted but no concomitant decrease in the use of intrusive procedures. (Author/DB)

A review of studies that used the Questionnaire on Resources and Stress with families rearing children with developmental disabilities identified three primary difficulties: (1) definitional problems: (2) multiple measures of the same construct that do not converge: and (3) failure to replicate. Solution strategies include separating demands,…

The following categories of research on choice behavior of individuals with severe developmental disabilities are reviewed: assessing their choice making, building choice opportunities in daily contexts, and evaluating the effects of choice making. Research suggests that most people with severe developmental disabilities are capable of making…