Examining Estimates of Effect Using Non-Overlap of All Pairs in Multiple Baseline Studies of Academic Intervention

• Published in: Journal of behavioral education Vol. 21; no. 3; pp. 203 - 216
• Main Authors: Petersen-Brown, Shawna, Karich, Abbey C., Symons, Frank J.
• Format: Journal Article
• Language: English
• Published: Boston Springer Science and Business Media, Inc 01.09.2012; Springer US; Springer; Springer Nature B.V
• Subjects: Analysis; Behavior modification; Behavioral Science and Psychology; Child and School Psychology; Comparative Analysis; Educational Practices; Educational psychology; Educational research; Effect Size; Evidence; Evidence Based Practice; Evidence-based medicine; Federal Legislation; Field Tests; Identification; Instructional Effectiveness; Intervention; Learning and Instruction; Learning disabilities; Mathematics education; Meta Analysis; Original Paper; Psychology; Quasiexperimental Design; Reading comprehension; Reading Difficulties; Reading instruction; Research methodology; Resistance (Psychology); Skinner, C; Special education; Special needs students; Systematic review; Writing; Writing instruction; Taiwan; Multiple baseline design; Effect size; Single subject; Meta-analysis
• ISSN: 1053-0819; 1573-3513
• DOI: 10.1007/s10864-012-9154-0

The inclusion of single-case design (SCD) studies in meta-analytic research is an important consideration in identifying effective evidence-based practices. Various SCD effect sizes have been previously suggested; non-overlap of all pairs (NAP) is a recently introduced effect size. Preliminary field tests investigating the adequacy of NAP are promising, but no analyses have been conducted using only multiple baseline designs (MBDs). This preliminary study investigated typical values of NAP in MBDs, investigated agreement with visual analysis, and suggested cut scores for interpreting a NAP effect size. Typical values of NAP in MBDs were larger compared to a previous meta-analysis of studies using AB, MBD, or ABAB withdrawal designs, and agreement of suggested cut scores and visual analysis was moderate.