Tools for evaluating the quality and rigor of single case research designs (SCD) are often used when conducting SCD syntheses. Preferred components include evaluations of design features related to the internal validity of SCD to obtain quality and/or rigor ratings. Three tools for evaluating the quality and rigor of SCD (Council for Exceptional…

Coaching has been shown to improve the use of evidence-based instructional practices (EBIPs), but relatively few studies have been conducted to assess the effectiveness of coaching for adults belonging to minority groups and paraprofessionals in public elementary school settings. In this study, a multiple probe design across participants was used…

Although comparison studies are important in early intervention/early childhood special education (EI/ECSE), results of well-designed comparison studies are likely to be unpublished because of undifferentiated or differently differentiated results across participants. The purpose of this article is to highlight the utility of comparison designs in…