手法を比較

	ABAデザイン	シングル被験者実験計画
分野	実験計画法	実験計画法
系統	Process / pipeline	Process / pipeline
提唱年	1968	1960s (Sidman 1960; formal applied codification by Kazdin and Baer in 1970s–1980s)
提唱者	Montrose Wolf, Donald Baer, Todd Risley (applied behavior analysis tradition)	Murray Sidman (foundational tactics); B. F. Skinner (applied behavior analysis lineage)
種類	Single-subject experimental design	Experimental research design
原典	Baer, D. M., Wolf, M. M., & Risley, T. R. (1968). Some current dimensions of applied behavior analysis. Journal of Applied Behavior Analysis, 1(1), 91–97.	Kazdin, A. E. (1982). Single-Case Research Designs: Methods for Clinical and Applied Settings. Oxford University Press. ISBN: 978-0195030440
別名	reversal design, withdrawal design, ABA withdrawal design	SSED, single-case experimental design, n-of-1 design, intrasubject replication design
関連	4	6
概要	The ABA design is a single-subject experimental design that demonstrates experimental control through three sequential phases: a baseline phase (A1), an intervention phase (B), and a return-to-baseline withdrawal phase (A2). By removing the intervention in the final phase and observing whether behavior reverts toward baseline levels, researchers establish a functional relationship between the treatment and the target behavior for an individual participant.	Single-subject experimental design (SSED) establishes experimental control by repeatedly measuring one individual (or a small number of individuals) across baseline and intervention phases, using the participant as their own control. Instead of comparing groups, it compares the participant's own behavior across conditions over time. Widely used in applied behavior analysis, special education, rehabilitation, and clinical psychology, SSED allows causal inference from small or unique samples where group designs are impractical.