The current text comments on three systematic reviews published in the special section "Issues and Advances in the Systematic Review of Single-Case Research: An Update and Exemplars." The commentary is provided in relation to the need to combine the assessment of the methodological quality of the studies included in systematic reviews,…

Social competence intervention studies published from 1970 to 2008 for preschoolers were reviewed for reports of social validity assessment. Analysis of 90 studies indicated that nearly 27% (n = 24) of studies reported at least one measure of social validity assessment for the goals (n = 7), procedures (n = 8), or effects (n = 19). The methods…

A defining feature of children with autism includes stereotypy, characterized as restrictive and repetitive vocal and motor behavior. The current literature review seeks to (a) determine the number of empirical studies using behavioral interventions to treat stereotypy exhibited by children with autism or other pervasive development disorder, (b)…

Autism has become one of the most heavily researched topics in the field of mental health and education. While genetics has been the most studied of all topics, applied behavior analysis (ABA) has also received a great deal of attention, and has arguably yielded the most promising results of any research area to date. The current paper provides a…

An extensive literature on the causes of challenging behaviors has been developed, primarily in the applied behavior analysis literature. One hundred and seventy-three empirical studies were reviewed where functional assessment serves as the primary method of identifying these causes. Most of the studies were able to identify a clear function or…

We review the concept of response to intervention (RtI) as it is being applied to emotional and behavioral disorders (EDB) in the early part of the 21st century, examining how it differs from and incorporates features of other approaches to addressing those problems, including pre-referral interventions, applied behavior analysis, functional…

Functional behavioral assessments can consist of indirect, descriptive and experimental procedures, such as a functional analysis. Although the research contains numerous examples demonstrating the effectiveness of functional analysis procedures, experimental conditions are often difficult to implement in classroom settings and analog conditions…

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…

Recording the antecedents and consequences of problem behavior for the purposes of conducting descriptive analyses (called "A-B-C recording") can be particularly challenging, given the multiple variables that are commonly present in the natural environment. Nonetheless, psychologists and behavioral consultants often must rely on parents and…

There has been much research concerning functional assessment over the past 20 years, but several important research considerations have yet to be explained. One is the comparison of different types of functional assessment (e.g., experimental functional analysis and non-experimental functional assessment). The current study aims to compare the…

The purpose of this study was to determine if specific classroom antecedents were associated with motor and vocal tics in two males diagnosed with Tourette's syndrome. A functional assessment consisting of teacher and student interviews, direct observations, brief functional analysis, and confirmatory naturalistic observations indicated that…

Simulations were conducted to investigate factors that influence the Mantel, generalized Mantel-Haenszel (GMH), and logistic discriminant function analysis (LDFA) methods in assessing differential item functioning (DIF) for polytomous items. The results show that the magnitude of DIF contamination in the matching score, as measured by the average…

Previous studies have shown that presession attention for problem behavior can serve as an abolishing operation when attention functions as a positive reinforcer. In the current study, we show that the stereotypy of a child with severe disabilities was undifferentiated during standard analogue functional analysis conditions. However, when…

Research on the treatment of challenging behaviors such as aggression, tantrums, and self-injury expanded significantly over the past two decades. However, despite of the rather impressive numbers of studies, it is still uncertain whether positive behavioral support (PBS) is effective with everyone. To be able to tell family members and…

We evaluated interventions designed to reduce multiply controlled problem behavior exhibited by a young boy with developmental disabilities, using a multiple baseline design. Each intervention was designed to address a specific social function of problem behavior. Results showed that the separate interventions were useful in reducing problem…