Debate is occurring about which result interpretation aides focused on examining the experimental effect should be used in single-subject experimental research. In this study, we examined seven nonoverlap methods and compared results using each method to judgments of two visual analysts. The data sources for the present study were 36 studies…

This article describes four single-subject research designs comparing two or more interventions with young disabled children--the multitreatment design, alternating treatments design, adapted alternating treatments design, and parallel treatments design. Problems in using these designs include multitreatment interference, nonreversibility of some…

This article describes the multielement design, often recommended in single-subject research, and discusses its advantages and disadvantages for research in early intervention with handicapped children. The article concludes that the multielement design has many advantages, though multiple treatment interference is an issue of concern. (JDD)

Reviews three areas of limitations in the comparative evaluations of early intervention alternatives for disabled children presented in this volume: (1) inaccurate outcomes measures; (2) a misconception of parent training programs as representing true family involvement; (3) and the lack of control over the integrity of treatment given study…

This study determined whether experts in special education transition services perceived a need for a common theoretical model and core set of outcome variables for follow-along research at the state level, evaluated a model for use in follow-along studies, and suggested research questions to be measured in a common format across statewide…