The research studies presented in this special issue rest on two assumptions: firstly, that limitations in verbal short-term memory and verbal working memory (vSTM/WM) capacity are likely to be related to impairments in syntax, and secondly that this relationship is likely to be causal, with impairments in vSTM/WM causing impairments in syntax. In…

Given the importance of social integration and participation in inclusive settings for young children with autism spectrum disorder (ASD), the purpose of this systematic review was to examine instructional outcomes and participant, teacher, group, and instructional characteristics that may be pertinent to successful group instruction for young…

This commentary responds to a critique (EC 610 642) of a study on professional acceptability of various treatment procedures for challenging behaviors exhibited by individuals with disabilities. The commentary asserts that treatment options should be evaluated in terms of probability of success, time factors, distress caused by the procedure, and…

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,…

Assessing the acceptability of various treatment procedures for individuals with disabilities and challenging behaviors in residential/vocational situations is a much debated issue. Instead of being forced to stay in untenable situations, these individuals should be helped to develop more comfortable environments. Efforts should focus on…

This paper explores the reasonableness of expecting conventional experimental methodologies and research reports on behavioral interventions for persons with developmental disabilities to both support the validity of promising practices and guide the efforts of practitioners to implement those practices. New directions for research and practice…

This commentary on EC 608 301 points out that devotion to the natural science canon of experimental proof in the area of generality testing requires proof procedures that are difficult, expensive, or impossible, but adopting a different canon of proof will not produce the desired certainty about the accuracy of the answer. (JDD)

Summaries are presented of the activities of 16 committees on the Mental Retardation and Developmental Disabilities Branch (MRDD) of the National Institute of Child Health. Committees are organized to guide future research efforts in biomedical issues, behavioral and social sciences, and the interface between biomedical and behavioral/social…

This paper details the pathway of development of early intervention program evaluation research along with the often-enumerated problems with research results. Early intervention evaluation, which was initiated in 1969, involves those organized efforts designed to remediate and/or reconcile developmental disabilities in young children up to the…

Employed a developmental context to discuss the problem of assessing both quantitative and qualitative deficits in the behavioral profiles of various diagnostic subcategories of developmentally disabled children. Methods of appropriate matching of control groups are suggested to help delineate specific and general deficits in subgroups of…

This commentary argues against assumptions of a paper (EC 608 301) on behavioral research methodology with individuals with developmental disabilities: (1) only knowledge deriving from integrated, community-based settings is relevant; (2) all research must immediately inform practice; and (3) there is little place for systematic study of behavior…

Discusses methodological problems of Sigman and Ruskin's longitudinal study. Questions whether determination of specificity, universality, and uniqueness is appropriately addressed by between-syndrome comparisons. Describes problems with group matching, offers a method of partially correcting them, and argues that group designs have limited…

Addresses questions about group comparisons and the extent to which the original Sigman and Ruskin study identified specific, unique, and universal deficits in autism. Considers the alternate methodology for measuring improvements in the performance of children with Down syndrome and autism. (JPB)

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 article reviews research on mainstreaming handicapped children. Topics include methodological problems, case studies, child-child interaction, peer imitation, mainstreaming and the teacher, the family's role, and transition and follow-up. Implications for early childhood educators are listed. (Author/DB)