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	Faktoriell experimentell design för enskilda subjekt	Enkel-individs experimentell design
Ämnesområde	Försöksplanering	Försöksplanering
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1970s–1980s	1960s (Sidman 1960; formal applied codification by Kazdin and Baer in 1970s–1980s)
Upphovsperson	Applied behavior analysis tradition; systematized in Barlow & Hersen (1984) and Kazdin (1982)	Murray Sidman (foundational tactics); B. F. Skinner (applied behavior analysis lineage)
Typ	Experimental single-subject design with multiple independent variables	Experimental research design
Ursprungskälla	Kazdin, A. E. (2011). Single-Case Research Designs: Methods for Clinical and Applied Settings (2nd ed.). Oxford University Press. ISBN: 978-0195341881	Kazdin, A. E. (1982). Single-Case Research Designs: Methods for Clinical and Applied Settings. Oxford University Press. ISBN: 978-0195030440
Alias	factorial SCED, factorial single-case design, factorial N-of-1 design, factorial within-subject experimental design	SSED, single-case experimental design, n-of-1 design, intrasubject replication design
Närliggande	6	6
Sammanfattning	A factorial single-subject experimental design applies the logic of factorial experiments — manipulating two or more independent variables simultaneously to study main effects and interactions — within a single-subject (N=1 or small N) repeated-measures framework. Instead of comparing groups, the same individual serves as their own control across systematically varied conditions, enabling fine-grained analysis of how multiple treatment components combine to influence behavior or clinical outcomes.	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.